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Posted to dev@commons.apache.org by md...@apache.org on 2003/06/25 03:28:59 UTC
cvs commit: jakarta-commons-sandbox/math/src/test/org/apache/commons/math/analysis InterpolatorTest.java SinFunction.java QuinticFunction.java
mdiggory 2003/06/24 18:28:59
Added: math/src/test/org/apache/commons/math/analysis
InterpolatorTest.java
Removed: math/src/test/org/apache/commons/math/analysis
SinFunction.java QuinticFunction.java
Log:
PR: http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21023
Submitted by: j3322ptm@yahoo.de HotFusionMan@Yahoo.com
Revision Changes Path
1.1 jakarta-commons-sandbox/math/src/test/org/apache/commons/math/analysis/InterpolatorTest.java
Index: InterpolatorTest.java
===================================================================
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
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* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
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* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
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* Foundation" must not be used to endorse or promote products derived
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*
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package org.apache.commons.math.analysis;
import org.apache.commons.math.MathException;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* Test the interpolation framework.
*
* @author pietsch at apache.org
*
*/
public class InterpolatorTest extends TestCase {
public InterpolatorTest(String name) {
super(name);
}
public static Test suite() {
TestSuite suite = new TestSuite(InterpolatorTest.class);
suite.setName("UnivariateRealInterpolator Tests");
return suite;
}
public void testInterpolateLinearDegenerateTwoSegment()
throws MathException {
System.out.println(" deg 2 seg");
double xval[] = { 0.0, 0.5, 1.0 };
double yval[] = { 0.0, 0.5, 1.0 };
UnivariateRealInterpolator i = new SplineInterpolator();
UnivariateRealFunction f = i.interpolate(xval, yval);
double x;
x = 0.0;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 0.5;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 1 - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
}
public void testInterpolateLinearDegenerateThreeSegment()
throws MathException {
System.out.println(" deg 3 seg");
double xval[] = { 0.0, 0.5, 1.0, 1.5 };
double yval[] = { 0.0, 0.5, 1.0, 1.5 };
UnivariateRealInterpolator i = new SplineInterpolator();
UnivariateRealFunction f = i.interpolate(xval, yval);
double x;
x = 0.0;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 0.5 - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 0.5;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 1 - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 1;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 1.5 - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
}
public void testInterpolateLinear() throws MathException {
System.out.println(" triang 2 seg");
double xval[] = { 0.0, 0.5, 1.0 };
double yval[] = { 0.0, 0.5, 0.0 };
UnivariateRealInterpolator i = new SplineInterpolator();
UnivariateRealFunction f = i.interpolate(xval, yval);
double x;
x = 0.0;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 0.5 - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 0.5;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 1 - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
}
public void testInterpolateSin() throws MathException {
System.out.println(" sin");
double xval[] =
{
0.0,
Math.PI / 6.0,
Math.PI / 2.0,
5.0 * Math.PI / 6.0,
Math.PI,
7.0 * Math.PI / 6.0,
3.0 * Math.PI / 2.0,
11.0 * Math.PI / 6.0,
2.0 * Math.PI };
double yval[] = { 0.0, 0.5, 1.0, 0.5, 0.0, -0.5, -1.0, -0.5, 0.0 };
System.out.println("n=" + xval.length);
UnivariateRealInterpolator i = new SplineInterpolator();
UnivariateRealFunction f = i.interpolate(xval, yval);
double x;
x = 0.0;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = Math.PI / 6.0 - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = Math.PI / 6.0 + 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = Math.PI / 2 - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = Math.PI / 2 + 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = Math.PI - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = Math.PI + 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
x = 2.0 * Math.PI - 1E-6;
System.out.println(
"x="
+ x
+ " y="
+ f.value(x)
+ " y'="
+ f.firstDerivative(x)
+ " y''="
+ f.secondDerivative(x));
//assertEquals(0.5,f.value(Math.PI/6.0),)
}
public void testIllegalArguments() throws MathException {
// Data set arrays of different size.
UnivariateRealInterpolator i = new SplineInterpolator();
try {
double xval[] = { 0.0, 1.0 };
double yval[] = { 0.0, 1.0, 2.0 };
UnivariateRealFunction f = i.interpolate(xval, yval);
fail("Failed to detect data set array with different sizes.");
} catch (IllegalArgumentException iae) {
}
// X values not sorted.
try {
double xval[] = { 0.0, 1.0, 0.5 };
double yval[] = { 0.0, 1.0, 2.0 };
UnivariateRealFunction f = i.interpolate(xval, yval);
fail("Failed to detect unsorted arguments.");
} catch (IllegalArgumentException iae) {
}
}
}
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