You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@commons.apache.org by ps...@apache.org on 2015/11/15 23:31:04 UTC

[math] Renamed FieldUnivariateFunction to RealFieldUnivariateFunction.

Repository: commons-math
Updated Branches:
  refs/heads/MATH_3_X 3d055c620 -> d3911464f


Renamed FieldUnivariateFunction to RealFieldUnivariateFunction.


Project: http://git-wip-us.apache.org/repos/asf/commons-math/repo
Commit: http://git-wip-us.apache.org/repos/asf/commons-math/commit/d3911464
Tree: http://git-wip-us.apache.org/repos/asf/commons-math/tree/d3911464
Diff: http://git-wip-us.apache.org/repos/asf/commons-math/diff/d3911464

Branch: refs/heads/MATH_3_X
Commit: d3911464f59982f3a93a2d44f627d968dca9bd04
Parents: 3d055c6
Author: Phil Steitz <ph...@gmail.com>
Authored: Sun Nov 15 15:30:49 2015 -0700
Committer: Phil Steitz <ph...@gmail.com>
Committed: Sun Nov 15 15:30:49 2015 -0700

----------------------------------------------------------------------
 .../math3/analysis/FieldUnivariateFunction.java | 86 --------------------
 .../analysis/RealFieldUnivariateFunction.java   | 86 ++++++++++++++++++++
 .../FieldBracketingNthOrderBrentSolver.java     |  6 +-
 .../dfp/BracketingNthOrderBrentSolverDFP.java   |  4 +-
 .../math3/dfp/UnivariateDfpFunction.java        |  2 +-
 .../FieldBracketingNthOrderBrentSolverTest.java | 18 ++--
 6 files changed, 101 insertions(+), 101 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/commons-math/blob/d3911464/src/main/java/org/apache/commons/math3/analysis/FieldUnivariateFunction.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math3/analysis/FieldUnivariateFunction.java b/src/main/java/org/apache/commons/math3/analysis/FieldUnivariateFunction.java
deleted file mode 100644
index 51ab51d..0000000
--- a/src/main/java/org/apache/commons/math3/analysis/FieldUnivariateFunction.java
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.commons.math3.analysis;
-
-import org.apache.commons.math3.RealFieldElement;
-
-/**
- * An interface representing a univariate real function.
- * <br/>
- * When a <em>user-defined</em> function encounters an error during
- * evaluation, the {@link #value(FieldElement) value} method should throw a
- * <em>user-defined</em> unchecked exception.
- * <br/>
- * The following code excerpt shows the recommended way to do that using
- * a root solver as an example, but the same construct is applicable to
- * ODE integrators or optimizers.
- *
- * <pre>
- * private static class LocalException extends RuntimeException {
- *     // The x value that caused the problem.
- *     private final SomeFieldType x;
- *
- *     public LocalException(SomeFieldType x) {
- *         this.x = x;
- *     }
- *
- *     public double getX() {
- *         return x;
- *     }
- * }
- *
- * private static class MyFunction implements FieldUnivariateFunction&lt;SomeFieldType&gt; {
- *     public SomeFieldType value(SomeFieldType x) {
- *         SomeFieldType y = hugeFormula(x);
- *         if (somethingBadHappens) {
- *           throw new LocalException(x);
- *         }
- *         return y;
- *     }
- * }
- *
- * public void compute() {
- *     try {
- *         solver.solve(maxEval, new MyFunction(a, b, c), min, max);
- *     } catch (LocalException le) {
- *         // Retrieve the x value.
- *     }
- * }
- * </pre>
- *
- * As shown, the exception is local to the user's code and it is guaranteed
- * that Apache Commons Math will not catch it.
- *
- * @param <T> the type of the field elements
- * @since 3.6
- * @see UnivariateFunction
- */
-public interface FieldUnivariateFunction<T extends RealFieldElement<T>> {
-    /**
-     * Compute the value of the function.
-     *
-     * @param x Point at which the function value should be computed.
-     * @return the value of the function.
-     * @throws IllegalArgumentException when the activated method itself can
-     * ascertain that a precondition, specified in the API expressed at the
-     * level of the activated method, has been violated.
-     * When Commons Math throws an {@code IllegalArgumentException}, it is
-     * usually the consequence of checking the actual parameters passed to
-     * the method.
-     */
-    T value(T x);
-}

http://git-wip-us.apache.org/repos/asf/commons-math/blob/d3911464/src/main/java/org/apache/commons/math3/analysis/RealFieldUnivariateFunction.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math3/analysis/RealFieldUnivariateFunction.java b/src/main/java/org/apache/commons/math3/analysis/RealFieldUnivariateFunction.java
new file mode 100644
index 0000000..21d7fa0
--- /dev/null
+++ b/src/main/java/org/apache/commons/math3/analysis/RealFieldUnivariateFunction.java
@@ -0,0 +1,86 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.math3.analysis;
+
+import org.apache.commons.math3.RealFieldElement;
+
+/**
+ * An interface representing a univariate real function.
+ * <br/>
+ * When a <em>user-defined</em> function encounters an error during
+ * evaluation, the {@link #value(FieldElement) value} method should throw a
+ * <em>user-defined</em> unchecked exception.
+ * <br/>
+ * The following code excerpt shows the recommended way to do that using
+ * a root solver as an example, but the same construct is applicable to
+ * ODE integrators or optimizers.
+ *
+ * <pre>
+ * private static class LocalException extends RuntimeException {
+ *     // The x value that caused the problem.
+ *     private final SomeFieldType x;
+ *
+ *     public LocalException(SomeFieldType x) {
+ *         this.x = x;
+ *     }
+ *
+ *     public double getX() {
+ *         return x;
+ *     }
+ * }
+ *
+ * private static class MyFunction implements FieldUnivariateFunction&lt;SomeFieldType&gt; {
+ *     public SomeFieldType value(SomeFieldType x) {
+ *         SomeFieldType y = hugeFormula(x);
+ *         if (somethingBadHappens) {
+ *           throw new LocalException(x);
+ *         }
+ *         return y;
+ *     }
+ * }
+ *
+ * public void compute() {
+ *     try {
+ *         solver.solve(maxEval, new MyFunction(a, b, c), min, max);
+ *     } catch (LocalException le) {
+ *         // Retrieve the x value.
+ *     }
+ * }
+ * </pre>
+ *
+ * As shown, the exception is local to the user's code and it is guaranteed
+ * that Apache Commons Math will not catch it.
+ *
+ * @param <T> the type of the field elements
+ * @since 3.6
+ * @see UnivariateFunction
+ */
+public interface RealFieldUnivariateFunction<T extends RealFieldElement<T>> {
+    /**
+     * Compute the value of the function.
+     *
+     * @param x Point at which the function value should be computed.
+     * @return the value of the function.
+     * @throws IllegalArgumentException when the activated method itself can
+     * ascertain that a precondition, specified in the API expressed at the
+     * level of the activated method, has been violated.
+     * When Commons Math throws an {@code IllegalArgumentException}, it is
+     * usually the consequence of checking the actual parameters passed to
+     * the method.
+     */
+    T value(T x);
+}

http://git-wip-us.apache.org/repos/asf/commons-math/blob/d3911464/src/main/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolver.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolver.java b/src/main/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolver.java
index 9c9c0f0..01bb784 100644
--- a/src/main/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolver.java
+++ b/src/main/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolver.java
@@ -19,7 +19,7 @@ package org.apache.commons.math3.analysis.solvers;
 
 import org.apache.commons.math3.Field;
 import org.apache.commons.math3.RealFieldElement;
-import org.apache.commons.math3.analysis.FieldUnivariateFunction;
+import org.apache.commons.math3.analysis.RealFieldUnivariateFunction;
 import org.apache.commons.math3.exception.MathInternalError;
 import org.apache.commons.math3.exception.NoBracketingException;
 import org.apache.commons.math3.exception.NullArgumentException;
@@ -162,7 +162,7 @@ public class FieldBracketingNthOrderBrentSolver<T extends RealFieldElement<T>> {
      * @exception NullArgumentException if f is null.
      * @exception NoBracketingException if root cannot be bracketed
      */
-    public T solve(final int maxEval, final FieldUnivariateFunction<T> f,
+    public T solve(final int maxEval, final RealFieldUnivariateFunction<T> f,
                    final T min, final T max, final AllowedSolution allowedSolution)
         throws NullArgumentException, NoBracketingException {
         return solve(maxEval, f, min, max, min.add(max).divide(2), allowedSolution);
@@ -185,7 +185,7 @@ public class FieldBracketingNthOrderBrentSolver<T extends RealFieldElement<T>> {
      * @exception NullArgumentException if f is null.
      * @exception NoBracketingException if root cannot be bracketed
      */
-    public T solve(final int maxEval, final FieldUnivariateFunction<T> f,
+    public T solve(final int maxEval, final RealFieldUnivariateFunction<T> f,
                    final T min, final T max, final T startValue,
                    final AllowedSolution allowedSolution)
         throws NullArgumentException, NoBracketingException {

http://git-wip-us.apache.org/repos/asf/commons-math/blob/d3911464/src/main/java/org/apache/commons/math3/dfp/BracketingNthOrderBrentSolverDFP.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math3/dfp/BracketingNthOrderBrentSolverDFP.java b/src/main/java/org/apache/commons/math3/dfp/BracketingNthOrderBrentSolverDFP.java
index fb6428b..0c5fa31 100644
--- a/src/main/java/org/apache/commons/math3/dfp/BracketingNthOrderBrentSolverDFP.java
+++ b/src/main/java/org/apache/commons/math3/dfp/BracketingNthOrderBrentSolverDFP.java
@@ -17,7 +17,7 @@
 package org.apache.commons.math3.dfp;
 
 
-import org.apache.commons.math3.analysis.FieldUnivariateFunction;
+import org.apache.commons.math3.analysis.RealFieldUnivariateFunction;
 import org.apache.commons.math3.analysis.solvers.AllowedSolution;
 import org.apache.commons.math3.analysis.solvers.FieldBracketingNthOrderBrentSolver;
 import org.apache.commons.math3.exception.NoBracketingException;
@@ -135,7 +135,7 @@ public class BracketingNthOrderBrentSolverDFP extends FieldBracketingNthOrderBre
         MathUtils.checkNotNull(f);
 
         // wrap the function
-        FieldUnivariateFunction<Dfp> fieldF = new FieldUnivariateFunction<Dfp>() {
+        RealFieldUnivariateFunction<Dfp> fieldF = new RealFieldUnivariateFunction<Dfp>() {
 
             /** {@inheritDoc} */
             @Override

http://git-wip-us.apache.org/repos/asf/commons-math/blob/d3911464/src/main/java/org/apache/commons/math3/dfp/UnivariateDfpFunction.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math3/dfp/UnivariateDfpFunction.java b/src/main/java/org/apache/commons/math3/dfp/UnivariateDfpFunction.java
index 5978476..5969065 100644
--- a/src/main/java/org/apache/commons/math3/dfp/UnivariateDfpFunction.java
+++ b/src/main/java/org/apache/commons/math3/dfp/UnivariateDfpFunction.java
@@ -18,7 +18,7 @@ package org.apache.commons.math3.dfp;
 
 /**
  * An interface representing a univariate {@link Dfp} function.
- * @deprecated as of 3.6, replaced with {@link org.apache.commons.math3.analysis.FieldUnivariateFunction}
+ * @deprecated as of 3.6, replaced with {@link org.apache.commons.math3.analysis.RealFieldUnivariateFunction}
  */
 @Deprecated
 public interface UnivariateDfpFunction {

http://git-wip-us.apache.org/repos/asf/commons-math/blob/d3911464/src/test/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolverTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolverTest.java b/src/test/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolverTest.java
index 327655f..c3be9f4 100644
--- a/src/test/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolverTest.java
+++ b/src/test/java/org/apache/commons/math3/analysis/solvers/FieldBracketingNthOrderBrentSolverTest.java
@@ -17,7 +17,7 @@
 
 package org.apache.commons.math3.analysis.solvers;
 
-import org.apache.commons.math3.analysis.FieldUnivariateFunction;
+import org.apache.commons.math3.analysis.RealFieldUnivariateFunction;
 import org.apache.commons.math3.analysis.solvers.AllowedSolution;
 import org.apache.commons.math3.dfp.Dfp;
 import org.apache.commons.math3.dfp.DfpField;
@@ -53,7 +53,7 @@ public final class FieldBracketingNthOrderBrentSolverTest {
         FieldBracketingNthOrderBrentSolver<Dfp> solver =
                 new FieldBracketingNthOrderBrentSolver<Dfp>(relativeAccuracy, absoluteAccuracy,
                                                             field.newDfp(1.0e-20), 20);
-        FieldUnivariateFunction<Dfp> f = new FieldUnivariateFunction<Dfp>() {
+        RealFieldUnivariateFunction<Dfp> f = new RealFieldUnivariateFunction<Dfp>() {
             public Dfp value(Dfp x) {
                 Dfp one     = field.getOne();
                 Dfp oneHalf = one.divide(2);
@@ -85,37 +85,37 @@ public final class FieldBracketingNthOrderBrentSolverTest {
         // intern J. Computer Math Vol 23 pp 265-282
         // available here: http://www.math.nps.navy.mil/~bneta/SeveralNewMethods.PDF
         for (AllowedSolution allowed : AllowedSolution.values()) {
-            check(new FieldUnivariateFunction<Dfp>() {
+            check(new RealFieldUnivariateFunction<Dfp>() {
                 public Dfp value(Dfp x) {
                     return DfpMath.sin(x).subtract(x.divide(2));
                 }
             }, 200, -2.0, 2.0, allowed);
 
-            check(new FieldUnivariateFunction<Dfp>() {
+            check(new RealFieldUnivariateFunction<Dfp>() {
                 public Dfp value(Dfp x) {
                     return DfpMath.pow(x, 5).add(x).subtract(field.newDfp(10000));
                 }
             }, 200, -5.0, 10.0, allowed);
 
-            check(new FieldUnivariateFunction<Dfp>() {
+            check(new RealFieldUnivariateFunction<Dfp>() {
                 public Dfp value(Dfp x) {
                     return x.sqrt().subtract(field.getOne().divide(x)).subtract(field.newDfp(3));
                 }
             }, 200, 0.001, 10.0, allowed);
 
-            check(new FieldUnivariateFunction<Dfp>() {
+            check(new RealFieldUnivariateFunction<Dfp>() {
                 public Dfp value(Dfp x) {
                     return DfpMath.exp(x).add(x).subtract(field.newDfp(20));
                 }
             }, 200, -5.0, 5.0, allowed);
 
-            check(new FieldUnivariateFunction<Dfp>() {
+            check(new RealFieldUnivariateFunction<Dfp>() {
                 public Dfp value(Dfp x) {
                     return DfpMath.log(x).add(x.sqrt()).subtract(field.newDfp(5));
                 }
             }, 200, 0.001, 10.0, allowed);
 
-            check(new FieldUnivariateFunction<Dfp>() {
+            check(new RealFieldUnivariateFunction<Dfp>() {
                 public Dfp value(Dfp x) {
                     return x.subtract(field.getOne()).multiply(x).multiply(x).subtract(field.getOne());
                 }
@@ -124,7 +124,7 @@ public final class FieldBracketingNthOrderBrentSolverTest {
 
     }
 
-    private void check(FieldUnivariateFunction<Dfp> f, int maxEval, double min, double max,
+    private void check(RealFieldUnivariateFunction<Dfp> f, int maxEval, double min, double max,
                        AllowedSolution allowedSolution) {
         FieldBracketingNthOrderBrentSolver<Dfp> solver =
                 new FieldBracketingNthOrderBrentSolver<Dfp>(relativeAccuracy, absoluteAccuracy,