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Posted to commits@commons.apache.org by tn...@apache.org on 2015/02/16 23:40:28 UTC
[58/82] [math] Update for next development iteration: commons-math4

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SphericalPolygonsSetTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SphericalPolygonsSetTest.java b/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SphericalPolygonsSetTest.java
index 6fbbcdc..e2359a3 100644
--- a/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SphericalPolygonsSetTest.java
+++ b/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SphericalPolygonsSetTest.java
@@ -14,23 +14,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.geometry.spherical.twod;
+package org.apache.commons.math4.geometry.spherical.twod;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import org.apache.commons.math3.geometry.enclosing.EnclosingBall;
-import org.apache.commons.math3.geometry.euclidean.threed.Rotation;
-import org.apache.commons.math3.geometry.euclidean.threed.Vector3D;
-import org.apache.commons.math3.geometry.partitioning.Region.Location;
-import org.apache.commons.math3.geometry.partitioning.RegionFactory;
-import org.apache.commons.math3.geometry.partitioning.SubHyperplane;
-import org.apache.commons.math3.geometry.spherical.oned.ArcsSet;
-import org.apache.commons.math3.geometry.spherical.oned.Sphere1D;
-import org.apache.commons.math3.random.UnitSphereRandomVectorGenerator;
-import org.apache.commons.math3.random.Well1024a;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.MathUtils;
+import org.apache.commons.math4.geometry.enclosing.EnclosingBall;
+import org.apache.commons.math4.geometry.euclidean.threed.Rotation;
+import org.apache.commons.math4.geometry.euclidean.threed.Vector3D;
+import org.apache.commons.math4.geometry.partitioning.RegionFactory;
+import org.apache.commons.math4.geometry.partitioning.SubHyperplane;
+import org.apache.commons.math4.geometry.partitioning.Region.Location;
+import org.apache.commons.math4.geometry.spherical.oned.ArcsSet;
+import org.apache.commons.math4.geometry.spherical.oned.Sphere1D;
+import org.apache.commons.math4.geometry.spherical.twod.Circle;
+import org.apache.commons.math4.geometry.spherical.twod.Edge;
+import org.apache.commons.math4.geometry.spherical.twod.S2Point;
+import org.apache.commons.math4.geometry.spherical.twod.Sphere2D;
+import org.apache.commons.math4.geometry.spherical.twod.SphericalPolygonsSet;
+import org.apache.commons.math4.geometry.spherical.twod.SubCircle;
+import org.apache.commons.math4.geometry.spherical.twod.Vertex;
+import org.apache.commons.math4.random.UnitSphereRandomVectorGenerator;
+import org.apache.commons.math4.random.Well1024a;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.MathUtils;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SubCircleTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SubCircleTest.java b/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SubCircleTest.java
index 5b1c25f..743cdbc 100644
--- a/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SubCircleTest.java
+++ b/src/test/java/org/apache/commons/math4/geometry/spherical/twod/SubCircleTest.java
@@ -14,16 +14,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.geometry.spherical.twod;
-
-import org.apache.commons.math3.geometry.euclidean.threed.Rotation;
-import org.apache.commons.math3.geometry.euclidean.threed.Vector3D;
-import org.apache.commons.math3.geometry.partitioning.RegionFactory;
-import org.apache.commons.math3.geometry.partitioning.Side;
-import org.apache.commons.math3.geometry.partitioning.SubHyperplane.SplitSubHyperplane;
-import org.apache.commons.math3.geometry.spherical.oned.ArcsSet;
-import org.apache.commons.math3.geometry.spherical.oned.Sphere1D;
-import org.apache.commons.math3.util.MathUtils;
+package org.apache.commons.math4.geometry.spherical.twod;
+
+import org.apache.commons.math4.geometry.euclidean.threed.Rotation;
+import org.apache.commons.math4.geometry.euclidean.threed.Vector3D;
+import org.apache.commons.math4.geometry.partitioning.RegionFactory;
+import org.apache.commons.math4.geometry.partitioning.Side;
+import org.apache.commons.math4.geometry.partitioning.SubHyperplane.SplitSubHyperplane;
+import org.apache.commons.math4.geometry.spherical.oned.ArcsSet;
+import org.apache.commons.math4.geometry.spherical.oned.Sphere1D;
+import org.apache.commons.math4.geometry.spherical.twod.Circle;
+import org.apache.commons.math4.geometry.spherical.twod.Sphere2D;
+import org.apache.commons.math4.geometry.spherical.twod.SubCircle;
+import org.apache.commons.math4.util.MathUtils;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/Array2DRowRealMatrixTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/Array2DRowRealMatrixTest.java b/src/test/java/org/apache/commons/math4/linear/Array2DRowRealMatrixTest.java
index 06c4b42..63300b4 100644
--- a/src/test/java/org/apache/commons/math4/linear/Array2DRowRealMatrixTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/Array2DRowRealMatrixTest.java
@@ -14,20 +14,29 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.exception.NoDataException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.MathIllegalStateException;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MathIllegalStateException;
+import org.apache.commons.math4.exception.NoDataException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.DefaultRealMatrixChangingVisitor;
+import org.apache.commons.math4.linear.DefaultRealMatrixPreservingVisitor;
+import org.apache.commons.math4.linear.LUDecomposition;
+import org.apache.commons.math4.linear.MatrixDimensionMismatchException;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Test cases for the {@link Array2DRowRealMatrix} class.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/ArrayFieldVectorTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/ArrayFieldVectorTest.java b/src/test/java/org/apache/commons/math4/linear/ArrayFieldVectorTest.java
index 05bd0bd..bc4211b 100644
--- a/src/test/java/org/apache/commons/math4/linear/ArrayFieldVectorTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/ArrayFieldVectorTest.java
@@ -14,20 +14,25 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.io.Serializable;
 import java.lang.reflect.Array;
 import java.util.Arrays;
 
-import org.apache.commons.math3.Field;
-import org.apache.commons.math3.FieldElement;
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.fraction.Fraction;
-import org.apache.commons.math3.fraction.FractionField;
+import org.apache.commons.math4.Field;
+import org.apache.commons.math4.FieldElement;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionField;
+import org.apache.commons.math4.linear.ArrayFieldVector;
+import org.apache.commons.math4.linear.FieldMatrix;
+import org.apache.commons.math4.linear.FieldVector;
+import org.apache.commons.math4.linear.FieldVectorChangingVisitor;
+import org.apache.commons.math4.linear.FieldVectorPreservingVisitor;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/ArrayRealVectorTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/ArrayRealVectorTest.java b/src/test/java/org/apache/commons/math4/linear/ArrayRealVectorTest.java
index 89b6812..44e7ed9 100644
--- a/src/test/java/org/apache/commons/math4/linear/ArrayRealVectorTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/ArrayRealVectorTest.java
@@ -14,9 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.RealVector;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/BiDiagonalTransformerTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/BiDiagonalTransformerTest.java b/src/test/java/org/apache/commons/math4/linear/BiDiagonalTransformerTest.java
index e2463de..b7d1669 100644
--- a/src/test/java/org/apache/commons/math4/linear/BiDiagonalTransformerTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/BiDiagonalTransformerTest.java
@@ -15,12 +15,12 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
-import org.apache.commons.math3.linear.BiDiagonalTransformer;
-import org.apache.commons.math3.linear.MatrixUtils;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.linear.BiDiagonalTransformer;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/BlockFieldMatrixTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/BlockFieldMatrixTest.java b/src/test/java/org/apache/commons/math4/linear/BlockFieldMatrixTest.java
index 193b873..48061d4 100644
--- a/src/test/java/org/apache/commons/math4/linear/BlockFieldMatrixTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/BlockFieldMatrixTest.java
@@ -14,23 +14,31 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Arrays;
 import java.util.Random;
 
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.fraction.Fraction;
-import org.apache.commons.math3.fraction.FractionField;
-import org.apache.commons.math3.exception.NoDataException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NoDataException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionField;
+import org.apache.commons.math4.linear.ArrayFieldVector;
+import org.apache.commons.math4.linear.BlockFieldMatrix;
+import org.apache.commons.math4.linear.DefaultFieldMatrixChangingVisitor;
+import org.apache.commons.math4.linear.DefaultFieldMatrixPreservingVisitor;
+import org.apache.commons.math4.linear.FieldLUDecomposition;
+import org.apache.commons.math4.linear.FieldMatrix;
+import org.apache.commons.math4.linear.FieldVector;
+import org.apache.commons.math4.linear.MatrixDimensionMismatchException;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
 
 /**
  * Test cases for the {@link BlockFieldMatrix} class.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/BlockRealMatrixTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/BlockRealMatrixTest.java b/src/test/java/org/apache/commons/math4/linear/BlockRealMatrixTest.java
index ceec98c..7d3acf1 100644
--- a/src/test/java/org/apache/commons/math4/linear/BlockRealMatrixTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/BlockRealMatrixTest.java
@@ -14,21 +14,29 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Arrays;
 import java.util.Random;
 
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.exception.NoDataException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NoDataException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.DefaultRealMatrixChangingVisitor;
+import org.apache.commons.math4.linear.DefaultRealMatrixPreservingVisitor;
+import org.apache.commons.math4.linear.LUDecomposition;
+import org.apache.commons.math4.linear.MatrixDimensionMismatchException;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.util.FastMath;
 
 /**
  * Test cases for the {@link BlockRealMatrix} class.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/CholeskyDecompositionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/CholeskyDecompositionTest.java b/src/test/java/org/apache/commons/math4/linear/CholeskyDecompositionTest.java
index eeafa7b..875ea9a 100644
--- a/src/test/java/org/apache/commons/math4/linear/CholeskyDecompositionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/CholeskyDecompositionTest.java
@@ -15,8 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
-
+package org.apache.commons.math4.linear;
+
+import org.apache.commons.math4.linear.CholeskyDecomposition;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.NonPositiveDefiniteMatrixException;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.NonSymmetricMatrixException;
+import org.apache.commons.math4.linear.RealMatrix;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/CholeskySolverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/CholeskySolverTest.java b/src/test/java/org/apache/commons/math4/linear/CholeskySolverTest.java
index 716248f..93c192d 100644
--- a/src/test/java/org/apache/commons/math4/linear/CholeskySolverTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/CholeskySolverTest.java
@@ -15,9 +15,13 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.linear.CholeskyDecomposition;
+import org.apache.commons.math4.linear.DecompositionSolver;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/ConjugateGradientTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/ConjugateGradientTest.java b/src/test/java/org/apache/commons/math4/linear/ConjugateGradientTest.java
index b160fe3..07c2ee0 100644
--- a/src/test/java/org/apache/commons/math4/linear/ConjugateGradientTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/ConjugateGradientTest.java
@@ -14,16 +14,27 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.MathUnsupportedOperationException;
-import org.apache.commons.math3.exception.MaxCountExceededException;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.IterationEvent;
-import org.apache.commons.math3.util.IterationListener;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.MathUnsupportedOperationException;
+import org.apache.commons.math4.exception.MaxCountExceededException;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.ConjugateGradient;
+import org.apache.commons.math4.linear.IterativeLinearSolver;
+import org.apache.commons.math4.linear.IterativeLinearSolverEvent;
+import org.apache.commons.math4.linear.JacobiPreconditioner;
+import org.apache.commons.math4.linear.NonPositiveDefiniteOperatorException;
+import org.apache.commons.math4.linear.NonSquareOperatorException;
+import org.apache.commons.math4.linear.PreconditionedIterativeLinearSolver;
+import org.apache.commons.math4.linear.RealLinearOperator;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.IterationEvent;
+import org.apache.commons.math4.util.IterationListener;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/DiagonalMatrixTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/DiagonalMatrixTest.java b/src/test/java/org/apache/commons/math4/linear/DiagonalMatrixTest.java
index db0ef43..cd703f5 100644
--- a/src/test/java/org/apache/commons/math4/linear/DiagonalMatrixTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/DiagonalMatrixTest.java
@@ -14,14 +14,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.util.Precision;
+package org.apache.commons.math4.linear;
+
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.DiagonalMatrix;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SingularMatrixException;
+import org.apache.commons.math4.util.Precision;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/EigenDecompositionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/EigenDecompositionTest.java b/src/test/java/org/apache/commons/math4/linear/EigenDecompositionTest.java
index ce0a6d0..cf86a4c 100644
--- a/src/test/java/org/apache/commons/math4/linear/EigenDecompositionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/EigenDecompositionTest.java
@@ -15,17 +15,23 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Arrays;
 import java.util.Random;
 
-
-import org.apache.commons.math3.distribution.NormalDistribution;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.Precision;
-import org.apache.commons.math3.util.MathArrays;
-import org.apache.commons.math3.exception.MathUnsupportedOperationException;
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.exception.MathUnsupportedOperationException;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.EigenDecomposition;
+import org.apache.commons.math4.linear.LUDecomposition;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.TriDiagonalTransformer;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.MathArrays;
+import org.apache.commons.math4.util.Precision;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/EigenSolverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/EigenSolverTest.java b/src/test/java/org/apache/commons/math4/linear/EigenSolverTest.java
index cff8683..541a8a7 100644
--- a/src/test/java/org/apache/commons/math4/linear/EigenSolverTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/EigenSolverTest.java
@@ -15,13 +15,17 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Random;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.util.Precision;
-
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.linear.DecompositionSolver;
+import org.apache.commons.math4.linear.EigenDecomposition;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.SingularMatrixException;
+import org.apache.commons.math4.util.Precision;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/FieldLUDecompositionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/FieldLUDecompositionTest.java b/src/test/java/org/apache/commons/math4/linear/FieldLUDecompositionTest.java
index a1fad5f..528fdeb 100644
--- a/src/test/java/org/apache/commons/math4/linear/FieldLUDecompositionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/FieldLUDecompositionTest.java
@@ -15,14 +15,17 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.fraction.Fraction;
-import org.apache.commons.math3.fraction.FractionField;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionField;
+import org.apache.commons.math4.linear.Array2DRowFieldMatrix;
+import org.apache.commons.math4.linear.FieldLUDecomposition;
+import org.apache.commons.math4.linear.FieldMatrix;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
 
 public class FieldLUDecompositionTest {
     private Fraction[][] testData = {

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/FieldLUSolverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/FieldLUSolverTest.java b/src/test/java/org/apache/commons/math4/linear/FieldLUSolverTest.java
index d90dff5..03662d8 100644
--- a/src/test/java/org/apache/commons/math4/linear/FieldLUSolverTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/FieldLUSolverTest.java
@@ -15,11 +15,18 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.fraction.Fraction;
-import org.apache.commons.math3.fraction.FractionField;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionField;
+import org.apache.commons.math4.linear.Array2DRowFieldMatrix;
+import org.apache.commons.math4.linear.FieldDecompositionSolver;
+import org.apache.commons.math4.linear.FieldLUDecomposition;
+import org.apache.commons.math4.linear.FieldMatrix;
+import org.apache.commons.math4.linear.FieldVector;
+import org.apache.commons.math4.linear.SingularMatrixException;
+import org.apache.commons.math4.linear.SparseFieldVector;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/FieldMatrixImplTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/FieldMatrixImplTest.java b/src/test/java/org/apache/commons/math4/linear/FieldMatrixImplTest.java
index 11e4bee..72c35b7 100644
--- a/src/test/java/org/apache/commons/math4/linear/FieldMatrixImplTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/FieldMatrixImplTest.java
@@ -14,22 +14,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.fraction.Fraction;
-import org.apache.commons.math3.fraction.FractionField;
-import org.apache.commons.math3.exception.MathIllegalStateException;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NoDataException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MathIllegalStateException;
+import org.apache.commons.math4.exception.NoDataException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionField;
+import org.apache.commons.math4.linear.Array2DRowFieldMatrix;
+import org.apache.commons.math4.linear.ArrayFieldVector;
+import org.apache.commons.math4.linear.DefaultFieldMatrixChangingVisitor;
+import org.apache.commons.math4.linear.DefaultFieldMatrixPreservingVisitor;
+import org.apache.commons.math4.linear.FieldLUDecomposition;
+import org.apache.commons.math4.linear.FieldMatrix;
+import org.apache.commons.math4.linear.FieldVector;
+import org.apache.commons.math4.linear.MatrixDimensionMismatchException;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
 
 /**
  * Test cases for the {@link Array2DRowFieldMatrix} class.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/FrenchRealVectorFormatTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/FrenchRealVectorFormatTest.java b/src/test/java/org/apache/commons/math4/linear/FrenchRealVectorFormatTest.java
index 09aae68..d208c50 100644
--- a/src/test/java/org/apache/commons/math4/linear/FrenchRealVectorFormatTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/FrenchRealVectorFormatTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Locale;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/HessenbergTransformerTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/HessenbergTransformerTest.java b/src/test/java/org/apache/commons/math4/linear/HessenbergTransformerTest.java
index ec7271b..75e3af6 100644
--- a/src/test/java/org/apache/commons/math4/linear/HessenbergTransformerTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/HessenbergTransformerTest.java
@@ -15,11 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Random;
 
-import org.apache.commons.math3.distribution.NormalDistribution;
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.linear.HessenbergTransformer;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.RealMatrix;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/HilbertMatrix.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/HilbertMatrix.java b/src/test/java/org/apache/commons/math4/linear/HilbertMatrix.java
index 7303d99..05bffba 100644
--- a/src/test/java/org/apache/commons/math4/linear/HilbertMatrix.java
+++ b/src/test/java/org/apache/commons/math4/linear/HilbertMatrix.java
@@ -14,9 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
-import org.apache.commons.math3.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.RealLinearOperator;
+import org.apache.commons.math4.linear.RealVector;
 
 /** This class implements Hilbert Matrices as {@link RealLinearOperator}. */
 public class HilbertMatrix

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/InverseHilbertMatrix.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/InverseHilbertMatrix.java b/src/test/java/org/apache/commons/math4/linear/InverseHilbertMatrix.java
index d42759f..0eba604 100644
--- a/src/test/java/org/apache/commons/math4/linear/InverseHilbertMatrix.java
+++ b/src/test/java/org/apache/commons/math4/linear/InverseHilbertMatrix.java
@@ -14,11 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.util.ArithmeticUtils;
-import org.apache.commons.math3.util.CombinatoricsUtils;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.RealLinearOperator;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.util.ArithmeticUtils;
+import org.apache.commons.math4.util.CombinatoricsUtils;
 
 /**
  * This class implements inverses of Hilbert Matrices as

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/LUDecompositionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/LUDecompositionTest.java b/src/test/java/org/apache/commons/math4/linear/LUDecompositionTest.java
index f8d610a..0eae9f6 100644
--- a/src/test/java/org/apache/commons/math4/linear/LUDecompositionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/LUDecompositionTest.java
@@ -15,8 +15,12 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
+import org.apache.commons.math4.linear.LUDecomposition;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.RealMatrix;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/LUSolverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/LUSolverTest.java b/src/test/java/org/apache/commons/math4/linear/LUSolverTest.java
index bf7b8b6..23d4a3e 100644
--- a/src/test/java/org/apache/commons/math4/linear/LUSolverTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/LUSolverTest.java
@@ -15,10 +15,14 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
-
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+package org.apache.commons.math4.linear;
 
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.linear.DecompositionSolver;
+import org.apache.commons.math4.linear.LUDecomposition;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.SingularMatrixException;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/MatrixDimensionMismatchExceptionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/MatrixDimensionMismatchExceptionTest.java b/src/test/java/org/apache/commons/math4/linear/MatrixDimensionMismatchExceptionTest.java
index acfa71d..e22e5ff 100644
--- a/src/test/java/org/apache/commons/math4/linear/MatrixDimensionMismatchExceptionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/MatrixDimensionMismatchExceptionTest.java
@@ -14,8 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
+import org.apache.commons.math4.linear.MatrixDimensionMismatchException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/MatrixUtilsTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/MatrixUtilsTest.java b/src/test/java/org/apache/commons/math4/linear/MatrixUtilsTest.java
index 5c308ad..9d80d3a 100644
--- a/src/test/java/org/apache/commons/math4/linear/MatrixUtilsTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/MatrixUtilsTest.java
@@ -14,18 +14,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.math.BigDecimal;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.fraction.BigFraction;
-import org.apache.commons.math3.fraction.Fraction;
-import org.apache.commons.math3.fraction.FractionConversionException;
-import org.apache.commons.math3.fraction.FractionField;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.fraction.BigFraction;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionConversionException;
+import org.apache.commons.math4.fraction.FractionField;
+import org.apache.commons.math4.linear.Array2DRowFieldMatrix;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.DiagonalMatrix;
+import org.apache.commons.math4.linear.FieldMatrix;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.NonSymmetricMatrixException;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SingularMatrixException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/OpenMapRealMatrixTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/OpenMapRealMatrixTest.java b/src/test/java/org/apache/commons/math4/linear/OpenMapRealMatrixTest.java
index d52a880..5e7c2fb 100644
--- a/src/test/java/org/apache/commons/math4/linear/OpenMapRealMatrixTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/OpenMapRealMatrixTest.java
@@ -14,9 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.linear.OpenMapRealMatrix;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/QRDecompositionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/QRDecompositionTest.java b/src/test/java/org/apache/commons/math4/linear/QRDecompositionTest.java
index a2d93f7..e501f1d 100644
--- a/src/test/java/org/apache/commons/math4/linear/QRDecompositionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/QRDecompositionTest.java
@@ -15,11 +15,19 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Random;
-import org.apache.commons.math3.linear.SingularMatrixException;
 
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.DefaultRealMatrixChangingVisitor;
+import org.apache.commons.math4.linear.DefaultRealMatrixPreservingVisitor;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.QRDecomposition;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SingularMatrixException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/QRSolverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/QRSolverTest.java b/src/test/java/org/apache/commons/math4/linear/QRSolverTest.java
index 04021c8..1b6fa72 100644
--- a/src/test/java/org/apache/commons/math4/linear/QRSolverTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/QRSolverTest.java
@@ -15,12 +15,19 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Random;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.DecompositionSolver;
+import org.apache.commons.math4.linear.DefaultRealMatrixChangingVisitor;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.QRDecomposition;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SingularMatrixException;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RRQRDecompositionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RRQRDecompositionTest.java b/src/test/java/org/apache/commons/math4/linear/RRQRDecompositionTest.java
index 2f894f8..8623bec 100644
--- a/src/test/java/org/apache/commons/math4/linear/RRQRDecompositionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RRQRDecompositionTest.java
@@ -15,10 +15,18 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Random;
 
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.DefaultRealMatrixChangingVisitor;
+import org.apache.commons.math4.linear.DefaultRealMatrixPreservingVisitor;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RRQRDecomposition;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.SingularMatrixException;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RRQRSolverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RRQRSolverTest.java b/src/test/java/org/apache/commons/math4/linear/RRQRSolverTest.java
index 63364c7..eb91c45 100644
--- a/src/test/java/org/apache/commons/math4/linear/RRQRSolverTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RRQRSolverTest.java
@@ -15,12 +15,19 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Random;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.DecompositionSolver;
+import org.apache.commons.math4.linear.DefaultRealMatrixChangingVisitor;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RRQRDecomposition;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SingularMatrixException;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatAbstractTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatAbstractTest.java b/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatAbstractTest.java
index a054623..752808e 100644
--- a/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatAbstractTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatAbstractTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.text.NumberFormat;
 import java.text.ParsePosition;
@@ -24,8 +24,10 @@ import java.util.Locale;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.exception.MathParseException;
+import org.apache.commons.math4.exception.MathParseException;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealMatrixFormat;
 
 public abstract class RealMatrixFormatAbstractTest {
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatTest.java b/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatTest.java
index 86a1e28..1577b61 100644
--- a/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RealMatrixFormatTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Locale;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RealVectorAbstractTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RealVectorAbstractTest.java b/src/test/java/org/apache/commons/math4/linear/RealVectorAbstractTest.java
index ac8cb8c..b49301c 100644
--- a/src/test/java/org/apache/commons/math4/linear/RealVectorAbstractTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RealVectorAbstractTest.java
@@ -14,46 +14,51 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.io.Serializable;
 import java.util.Arrays;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.function.Abs;
-import org.apache.commons.math3.analysis.function.Acos;
-import org.apache.commons.math3.analysis.function.Asin;
-import org.apache.commons.math3.analysis.function.Atan;
-import org.apache.commons.math3.analysis.function.Cbrt;
-import org.apache.commons.math3.analysis.function.Ceil;
-import org.apache.commons.math3.analysis.function.Cos;
-import org.apache.commons.math3.analysis.function.Cosh;
-import org.apache.commons.math3.analysis.function.Exp;
-import org.apache.commons.math3.analysis.function.Expm1;
-import org.apache.commons.math3.analysis.function.Floor;
-import org.apache.commons.math3.analysis.function.Inverse;
-import org.apache.commons.math3.analysis.function.Log;
-import org.apache.commons.math3.analysis.function.Log10;
-import org.apache.commons.math3.analysis.function.Log1p;
-import org.apache.commons.math3.analysis.function.Power;
-import org.apache.commons.math3.analysis.function.Rint;
-import org.apache.commons.math3.analysis.function.Signum;
-import org.apache.commons.math3.analysis.function.Sin;
-import org.apache.commons.math3.analysis.function.Sinh;
-import org.apache.commons.math3.analysis.function.Sqrt;
-import org.apache.commons.math3.analysis.function.Tan;
-import org.apache.commons.math3.analysis.function.Tanh;
-import org.apache.commons.math3.analysis.function.Ulp;
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.MathArithmeticException;
-import org.apache.commons.math3.exception.NotPositiveException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.MathArrays;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.function.Abs;
+import org.apache.commons.math4.analysis.function.Acos;
+import org.apache.commons.math4.analysis.function.Asin;
+import org.apache.commons.math4.analysis.function.Atan;
+import org.apache.commons.math4.analysis.function.Cbrt;
+import org.apache.commons.math4.analysis.function.Ceil;
+import org.apache.commons.math4.analysis.function.Cos;
+import org.apache.commons.math4.analysis.function.Cosh;
+import org.apache.commons.math4.analysis.function.Exp;
+import org.apache.commons.math4.analysis.function.Expm1;
+import org.apache.commons.math4.analysis.function.Floor;
+import org.apache.commons.math4.analysis.function.Inverse;
+import org.apache.commons.math4.analysis.function.Log;
+import org.apache.commons.math4.analysis.function.Log10;
+import org.apache.commons.math4.analysis.function.Log1p;
+import org.apache.commons.math4.analysis.function.Power;
+import org.apache.commons.math4.analysis.function.Rint;
+import org.apache.commons.math4.analysis.function.Signum;
+import org.apache.commons.math4.analysis.function.Sin;
+import org.apache.commons.math4.analysis.function.Sinh;
+import org.apache.commons.math4.analysis.function.Sqrt;
+import org.apache.commons.math4.analysis.function.Tan;
+import org.apache.commons.math4.analysis.function.Tanh;
+import org.apache.commons.math4.analysis.function.Ulp;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.MathArithmeticException;
+import org.apache.commons.math4.exception.NotPositiveException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.linear.OpenMapRealVector;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.RealVectorChangingVisitor;
+import org.apache.commons.math4.linear.RealVectorPreservingVisitor;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.MathArrays;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RealVectorFormatAbstractTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RealVectorFormatAbstractTest.java b/src/test/java/org/apache/commons/math4/linear/RealVectorFormatAbstractTest.java
index c1a3d74..49f117b 100644
--- a/src/test/java/org/apache/commons/math4/linear/RealVectorFormatAbstractTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RealVectorFormatAbstractTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.text.NumberFormat;
 import java.text.ParsePosition;
@@ -23,8 +23,9 @@ import java.util.Locale;
 
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.exception.MathParseException;
+import org.apache.commons.math4.exception.MathParseException;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.RealVectorFormat;
 
 public abstract class RealVectorFormatAbstractTest {
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RealVectorFormatTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RealVectorFormatTest.java b/src/test/java/org/apache/commons/math4/linear/RealVectorFormatTest.java
index fb21a0f..483e55e 100644
--- a/src/test/java/org/apache/commons/math4/linear/RealVectorFormatTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RealVectorFormatTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Locale;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RealVectorTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RealVectorTest.java b/src/test/java/org/apache/commons/math4/linear/RealVectorTest.java
index 1412a09..f4d46fa 100644
--- a/src/test/java/org/apache/commons/math4/linear/RealVectorTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RealVectorTest.java
@@ -15,11 +15,12 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Iterator;
 
-import org.apache.commons.math3.linear.RealVector.Entry;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.RealVector.Entry;
 import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/RectangularCholeskyDecompositionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/RectangularCholeskyDecompositionTest.java b/src/test/java/org/apache/commons/math4/linear/RectangularCholeskyDecompositionTest.java
index fa43eac..42e2f2d 100644
--- a/src/test/java/org/apache/commons/math4/linear/RectangularCholeskyDecompositionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/RectangularCholeskyDecompositionTest.java
@@ -15,8 +15,11 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RectangularCholeskyDecomposition;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/SchurTransformerTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/SchurTransformerTest.java b/src/test/java/org/apache/commons/math4/linear/SchurTransformerTest.java
index d40a1ba..4c645fb 100644
--- a/src/test/java/org/apache/commons/math4/linear/SchurTransformerTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/SchurTransformerTest.java
@@ -15,11 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Random;
 
-import org.apache.commons.math3.distribution.NormalDistribution;
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.SchurTransformer;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/SingularValueDecompositionTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/SingularValueDecompositionTest.java b/src/test/java/org/apache/commons/math4/linear/SingularValueDecompositionTest.java
index 40c33a7..2848aa2 100644
--- a/src/test/java/org/apache/commons/math4/linear/SingularValueDecompositionTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/SingularValueDecompositionTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.io.BufferedReader;
 import java.io.DataInputStream;
@@ -23,6 +23,10 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.util.Random;
 
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.SingularValueDecomposition;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/SingularValueSolverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/SingularValueSolverTest.java b/src/test/java/org/apache/commons/math4/linear/SingularValueSolverTest.java
index 9757cb7..b01332a 100644
--- a/src/test/java/org/apache/commons/math4/linear/SingularValueSolverTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/SingularValueSolverTest.java
@@ -15,10 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
-
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-
+package org.apache.commons.math4.linear;
+
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.DecompositionSolver;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SingularValueDecomposition;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/SparseFieldMatrixTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/SparseFieldMatrixTest.java b/src/test/java/org/apache/commons/math4/linear/SparseFieldMatrixTest.java
index 7591eaa..caab6a6 100644
--- a/src/test/java/org/apache/commons/math4/linear/SparseFieldMatrixTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/SparseFieldMatrixTest.java
@@ -14,20 +14,26 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.Field;
-import org.apache.commons.math3.fraction.Fraction;
-import org.apache.commons.math3.fraction.FractionConversionException;
-import org.apache.commons.math3.fraction.FractionField;
-import org.apache.commons.math3.exception.NoDataException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.Field;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NoDataException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionConversionException;
+import org.apache.commons.math4.fraction.FractionField;
+import org.apache.commons.math4.linear.Array2DRowFieldMatrix;
+import org.apache.commons.math4.linear.ArrayFieldVector;
+import org.apache.commons.math4.linear.FieldLUDecomposition;
+import org.apache.commons.math4.linear.FieldMatrix;
+import org.apache.commons.math4.linear.FieldVector;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.SparseFieldMatrix;
 
 /**
  * Test cases for the {@link SparseFieldMatrix} class.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/SparseFieldVectorTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/SparseFieldVectorTest.java b/src/test/java/org/apache/commons/math4/linear/SparseFieldVectorTest.java
index 3b4c096..3a607f4 100644
--- a/src/test/java/org/apache/commons/math4/linear/SparseFieldVectorTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/SparseFieldVectorTest.java
@@ -14,17 +14,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.fraction.Fraction;
-import org.apache.commons.math3.fraction.FractionConversionException;
-import org.apache.commons.math3.fraction.FractionField;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.OutOfRangeException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.fraction.Fraction;
+import org.apache.commons.math4.fraction.FractionConversionException;
+import org.apache.commons.math4.fraction.FractionField;
+import org.apache.commons.math4.linear.FieldMatrix;
+import org.apache.commons.math4.linear.FieldVector;
+import org.apache.commons.math4.linear.FieldVectorChangingVisitor;
+import org.apache.commons.math4.linear.FieldVectorPreservingVisitor;
+import org.apache.commons.math4.linear.SparseFieldVector;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/SparseRealMatrixTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/SparseRealMatrixTest.java b/src/test/java/org/apache/commons/math4/linear/SparseRealMatrixTest.java
index f54075d..9a1afa4 100644
--- a/src/test/java/org/apache/commons/math4/linear/SparseRealMatrixTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/SparseRealMatrixTest.java
@@ -14,17 +14,23 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import org.junit.Test;
 import org.junit.Assert;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.exception.NoDataException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NoDataException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.LUDecomposition;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.OpenMapRealMatrix;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
 
 /**
  * Test cases for the {@link OpenMapRealMatrix} class.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/SparseRealVectorTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/SparseRealVectorTest.java b/src/test/java/org/apache/commons/math4/linear/SparseRealVectorTest.java
index 6b08423..58491b7 100644
--- a/src/test/java/org/apache/commons/math4/linear/SparseRealVectorTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/SparseRealVectorTest.java
@@ -14,29 +14,31 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
-
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.function.Abs;
-import org.apache.commons.math3.analysis.function.Acos;
-import org.apache.commons.math3.analysis.function.Asin;
-import org.apache.commons.math3.analysis.function.Atan;
-import org.apache.commons.math3.analysis.function.Cbrt;
-import org.apache.commons.math3.analysis.function.Ceil;
-import org.apache.commons.math3.analysis.function.Cos;
-import org.apache.commons.math3.analysis.function.Cosh;
-import org.apache.commons.math3.analysis.function.Exp;
-import org.apache.commons.math3.analysis.function.Expm1;
-import org.apache.commons.math3.analysis.function.Floor;
-import org.apache.commons.math3.analysis.function.Log1p;
-import org.apache.commons.math3.analysis.function.Power;
-import org.apache.commons.math3.analysis.function.Rint;
-import org.apache.commons.math3.analysis.function.Signum;
-import org.apache.commons.math3.analysis.function.Sin;
-import org.apache.commons.math3.analysis.function.Sinh;
-import org.apache.commons.math3.analysis.function.Sqrt;
-import org.apache.commons.math3.analysis.function.Tan;
-import org.apache.commons.math3.analysis.function.Tanh;
+package org.apache.commons.math4.linear;
+
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.function.Abs;
+import org.apache.commons.math4.analysis.function.Acos;
+import org.apache.commons.math4.analysis.function.Asin;
+import org.apache.commons.math4.analysis.function.Atan;
+import org.apache.commons.math4.analysis.function.Cbrt;
+import org.apache.commons.math4.analysis.function.Ceil;
+import org.apache.commons.math4.analysis.function.Cos;
+import org.apache.commons.math4.analysis.function.Cosh;
+import org.apache.commons.math4.analysis.function.Exp;
+import org.apache.commons.math4.analysis.function.Expm1;
+import org.apache.commons.math4.analysis.function.Floor;
+import org.apache.commons.math4.analysis.function.Log1p;
+import org.apache.commons.math4.analysis.function.Power;
+import org.apache.commons.math4.analysis.function.Rint;
+import org.apache.commons.math4.analysis.function.Signum;
+import org.apache.commons.math4.analysis.function.Sin;
+import org.apache.commons.math4.analysis.function.Sinh;
+import org.apache.commons.math4.analysis.function.Sqrt;
+import org.apache.commons.math4.analysis.function.Tan;
+import org.apache.commons.math4.analysis.function.Tanh;
+import org.apache.commons.math4.linear.OpenMapRealVector;
+import org.apache.commons.math4.linear.RealVector;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/SymmLQTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/SymmLQTest.java b/src/test/java/org/apache/commons/math4/linear/SymmLQTest.java
index bc2cd7e..5934b58 100644
--- a/src/test/java/org/apache/commons/math4/linear/SymmLQTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/SymmLQTest.java
@@ -14,14 +14,28 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.IterationEvent;
-import org.apache.commons.math3.util.IterationListener;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.DecompositionSolver;
+import org.apache.commons.math4.linear.IterativeLinearSolver;
+import org.apache.commons.math4.linear.IterativeLinearSolverEvent;
+import org.apache.commons.math4.linear.JacobiPreconditioner;
+import org.apache.commons.math4.linear.LUDecomposition;
+import org.apache.commons.math4.linear.NonPositiveDefiniteOperatorException;
+import org.apache.commons.math4.linear.NonSelfAdjointOperatorException;
+import org.apache.commons.math4.linear.NonSquareOperatorException;
+import org.apache.commons.math4.linear.PreconditionedIterativeLinearSolver;
+import org.apache.commons.math4.linear.RealLinearOperator;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.SymmLQ;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.IterationEvent;
+import org.apache.commons.math4.util.IterationListener;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/TriDiagonalTransformerTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/TriDiagonalTransformerTest.java b/src/test/java/org/apache/commons/math4/linear/TriDiagonalTransformerTest.java
index b55265b..65b6d94 100644
--- a/src/test/java/org/apache/commons/math4/linear/TriDiagonalTransformerTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/TriDiagonalTransformerTest.java
@@ -15,12 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.util.FastMath;
-
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.NonSquareMatrixException;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.TriDiagonalTransformer;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/UnmodifiableArrayRealVectorTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/UnmodifiableArrayRealVectorTest.java b/src/test/java/org/apache/commons/math4/linear/UnmodifiableArrayRealVectorTest.java
index 88984dd..ef6a697 100644
--- a/src/test/java/org/apache/commons/math4/linear/UnmodifiableArrayRealVectorTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/UnmodifiableArrayRealVectorTest.java
@@ -14,7 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
+
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.RealVector;
 
 /**
  * This is an implementation of {@link UnmodifiableRealVectorAbstractTest} for

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/UnmodifiableOpenMapRealVectorTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/UnmodifiableOpenMapRealVectorTest.java b/src/test/java/org/apache/commons/math4/linear/UnmodifiableOpenMapRealVectorTest.java
index 4b3b53e..4e67150 100644
--- a/src/test/java/org/apache/commons/math4/linear/UnmodifiableOpenMapRealVectorTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/UnmodifiableOpenMapRealVectorTest.java
@@ -15,7 +15,11 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
+
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.OpenMapRealVector;
+import org.apache.commons.math4.linear.RealVector;
 
 /**
  * This is an implementation of {@link UnmodifiableRealVectorAbstractTest} for

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/linear/UnmodifiableRealVectorAbstractTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/linear/UnmodifiableRealVectorAbstractTest.java b/src/test/java/org/apache/commons/math4/linear/UnmodifiableRealVectorAbstractTest.java
index a2bdf33..9930801 100644
--- a/src/test/java/org/apache/commons/math4/linear/UnmodifiableRealVectorAbstractTest.java
+++ b/src/test/java/org/apache/commons/math4/linear/UnmodifiableRealVectorAbstractTest.java
@@ -14,7 +14,7 @@
  * License for the specific language governing permissions and limitations under
  * the License.
  */
-package org.apache.commons.math3.linear;
+package org.apache.commons.math4.linear;
 
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -23,11 +23,14 @@ import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Random;
 
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import org.apache.commons.math3.analysis.function.Sin;
-import org.apache.commons.math3.exception.MathUnsupportedOperationException;
-import org.apache.commons.math3.linear.RealVector.Entry;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import org.apache.commons.math4.analysis.function.Sin;
+import org.apache.commons.math4.exception.MathUnsupportedOperationException;
+import org.apache.commons.math4.linear.ArrayRealVector;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.linear.RealVector;
+import org.apache.commons.math4.linear.RealVector.Entry;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/ml/clustering/DBSCANClustererTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/ml/clustering/DBSCANClustererTest.java b/src/test/java/org/apache/commons/math4/ml/clustering/DBSCANClustererTest.java
index 497459f..06e28c9 100644
--- a/src/test/java/org/apache/commons/math4/ml/clustering/DBSCANClustererTest.java
+++ b/src/test/java/org/apache/commons/math4/ml/clustering/DBSCANClustererTest.java
@@ -14,13 +14,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.ml.clustering;
+package org.apache.commons.math4.ml.clustering;
 
 import java.util.Arrays;
 import java.util.List;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.NullArgumentException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.ml.clustering.Cluster;
+import org.apache.commons.math4.ml.clustering.DBSCANClusterer;
+import org.apache.commons.math4.ml.clustering.DoublePoint;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/ml/clustering/FuzzyKMeansClustererTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/ml/clustering/FuzzyKMeansClustererTest.java b/src/test/java/org/apache/commons/math4/ml/clustering/FuzzyKMeansClustererTest.java
index 885b9c2..a46c01e 100644
--- a/src/test/java/org/apache/commons/math4/ml/clustering/FuzzyKMeansClustererTest.java
+++ b/src/test/java/org/apache/commons/math4/ml/clustering/FuzzyKMeansClustererTest.java
@@ -14,18 +14,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.ml.clustering;
+package org.apache.commons.math4.ml.clustering;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.ml.distance.CanberraDistance;
-import org.apache.commons.math3.ml.distance.DistanceMeasure;
-import org.apache.commons.math3.random.JDKRandomGenerator;
-import org.apache.commons.math3.random.RandomGenerator;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.ml.clustering.CentroidCluster;
+import org.apache.commons.math4.ml.clustering.Cluster;
+import org.apache.commons.math4.ml.clustering.DoublePoint;
+import org.apache.commons.math4.ml.clustering.FuzzyKMeansClusterer;
+import org.apache.commons.math4.ml.distance.CanberraDistance;
+import org.apache.commons.math4.ml.distance.DistanceMeasure;
+import org.apache.commons.math4.random.JDKRandomGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
 import org.hamcrest.CoreMatchers;
 import org.junit.Assert;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/ml/clustering/KMeansPlusPlusClustererTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/ml/clustering/KMeansPlusPlusClustererTest.java b/src/test/java/org/apache/commons/math4/ml/clustering/KMeansPlusPlusClustererTest.java
index 3d3416d..31d4288 100644
--- a/src/test/java/org/apache/commons/math4/ml/clustering/KMeansPlusPlusClustererTest.java
+++ b/src/test/java/org/apache/commons/math4/ml/clustering/KMeansPlusPlusClustererTest.java
@@ -15,17 +15,21 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.ml.clustering;
+package org.apache.commons.math4.ml.clustering;
 
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.ml.distance.EuclideanDistance;
-import org.apache.commons.math3.random.JDKRandomGenerator;
-import org.apache.commons.math3.random.RandomGenerator;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.ml.clustering.CentroidCluster;
+import org.apache.commons.math4.ml.clustering.Cluster;
+import org.apache.commons.math4.ml.clustering.DoublePoint;
+import org.apache.commons.math4.ml.clustering.KMeansPlusPlusClusterer;
+import org.apache.commons.math4.ml.distance.EuclideanDistance;
+import org.apache.commons.math4.random.JDKRandomGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/ml/clustering/MultiKMeansPlusPlusClustererTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/ml/clustering/MultiKMeansPlusPlusClustererTest.java b/src/test/java/org/apache/commons/math4/ml/clustering/MultiKMeansPlusPlusClustererTest.java
index 23d178a..cf4ec54 100644
--- a/src/test/java/org/apache/commons/math4/ml/clustering/MultiKMeansPlusPlusClustererTest.java
+++ b/src/test/java/org/apache/commons/math4/ml/clustering/MultiKMeansPlusPlusClustererTest.java
@@ -15,12 +15,17 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.ml.clustering;
+package org.apache.commons.math4.ml.clustering;
 
 
 import java.util.Arrays;
 import java.util.List;
 
+import org.apache.commons.math4.ml.clustering.CentroidCluster;
+import org.apache.commons.math4.ml.clustering.Clusterable;
+import org.apache.commons.math4.ml.clustering.DoublePoint;
+import org.apache.commons.math4.ml.clustering.KMeansPlusPlusClusterer;
+import org.apache.commons.math4.ml.clustering.MultiKMeansPlusPlusClusterer;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/ml/clustering/evaluation/SumOfClusterVariancesTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/ml/clustering/evaluation/SumOfClusterVariancesTest.java b/src/test/java/org/apache/commons/math4/ml/clustering/evaluation/SumOfClusterVariancesTest.java
index a92256d..4dde78f 100644
--- a/src/test/java/org/apache/commons/math4/ml/clustering/evaluation/SumOfClusterVariancesTest.java
+++ b/src/test/java/org/apache/commons/math4/ml/clustering/evaluation/SumOfClusterVariancesTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.ml.clustering.evaluation;
+package org.apache.commons.math4.ml.clustering.evaluation;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
@@ -24,9 +24,11 @@ import static org.junit.Assert.assertTrue;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.apache.commons.math3.ml.clustering.Cluster;
-import org.apache.commons.math3.ml.clustering.DoublePoint;
-import org.apache.commons.math3.ml.distance.EuclideanDistance;
+import org.apache.commons.math4.ml.clustering.Cluster;
+import org.apache.commons.math4.ml.clustering.DoublePoint;
+import org.apache.commons.math4.ml.clustering.evaluation.ClusterEvaluator;
+import org.apache.commons.math4.ml.clustering.evaluation.SumOfClusterVariances;
+import org.apache.commons.math4.ml.distance.EuclideanDistance;
 import org.junit.Before;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/ml/distance/CanberraDistanceTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/ml/distance/CanberraDistanceTest.java b/src/test/java/org/apache/commons/math4/ml/distance/CanberraDistanceTest.java
index 339e517..2096303 100644
--- a/src/test/java/org/apache/commons/math4/ml/distance/CanberraDistanceTest.java
+++ b/src/test/java/org/apache/commons/math4/ml/distance/CanberraDistanceTest.java
@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.ml.distance;
+package org.apache.commons.math4.ml.distance;
 
+import org.apache.commons.math4.ml.distance.CanberraDistance;
+import org.apache.commons.math4.ml.distance.DistanceMeasure;
 import org.junit.Assert;
 import org.junit.Test;