These only need to be in tests
git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@140952 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Mark R. Diggory
parent
542211e8c4
commit
2a0f365958
|
|
@ -0,0 +1,88 @@
|
||||||
|
/* ====================================================================
|
||||||
|
* The Apache Software License, Version 1.1
|
||||||
|
*
|
||||||
|
* Copyright (c) 2003 The Apache Software Foundation. All rights
|
||||||
|
* reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* 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.
|
||||||
|
*
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* 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.
|
||||||
|
*
|
||||||
|
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
|
||||||
|
* Foundation" must not be used to endorse or promote products derived
|
||||||
|
* from this software without prior written permission. For written
|
||||||
|
* permission, please contact apache@apache.org.
|
||||||
|
*
|
||||||
|
* 5. Products derived from this software may not be called "Apache"
|
||||||
|
* nor may "Apache" appear in their names without prior written
|
||||||
|
* permission of the Apache Software Foundation.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
||||||
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||||
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
|
||||||
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
||||||
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||||
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||||
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||||
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
* ====================================================================
|
||||||
|
*
|
||||||
|
* This software consists of voluntary contributions made by many
|
||||||
|
* individuals on behalf of the Apache Software Foundation. For more
|
||||||
|
* information on the Apache Software Foundation, please see
|
||||||
|
* <http://www.apache.org/>.
|
||||||
|
*/
|
||||||
|
package org.apache.commons.math.analysis;
|
||||||
|
|
||||||
|
import org.apache.commons.math.MathException;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Auxillary class for testing solvers.
|
||||||
|
*
|
||||||
|
* @author pietsch at apache.org
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
public class QuinticFunction implements UnivariateRealFunction {
|
||||||
|
|
||||||
|
/* Evaluate quintic.
|
||||||
|
* @see org.apache.commons.math.UnivariateRealFunction#value(double)
|
||||||
|
*/
|
||||||
|
public double value(double x) throws MathException {
|
||||||
|
return (x-1)*(x-0.5)*x*(x+0.5)*(x+1);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* First derivative of quintic.
|
||||||
|
* @see org.apache.commons.math.UnivariateRealFunction#firstDerivative(double)
|
||||||
|
*/
|
||||||
|
public double firstDerivative(double x) throws MathException {
|
||||||
|
return (5*x*x-3.75)*x*x+0.25;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Second order derivative of quintic.
|
||||||
|
* Unsupported.
|
||||||
|
* @see org.apache.commons.math.UnivariateRealFunction#secondDerivative(double)
|
||||||
|
*/
|
||||||
|
public double secondDerivative(double x) throws MathException {
|
||||||
|
throw new UnsupportedOperationException();
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,93 @@
|
||||||
|
/* ====================================================================
|
||||||
|
* The Apache Software License, Version 1.1
|
||||||
|
*
|
||||||
|
* Copyright (c) 2003 The Apache Software Foundation. All rights
|
||||||
|
* reserved.
|
||||||
|
*
|
||||||
|
* Redistribution and use in source and binary forms, with or without
|
||||||
|
* 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.
|
||||||
|
*
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* 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.
|
||||||
|
*
|
||||||
|
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
|
||||||
|
* Foundation" must not be used to endorse or promote products derived
|
||||||
|
* from this software without prior written permission. For written
|
||||||
|
* permission, please contact apache@apache.org.
|
||||||
|
*
|
||||||
|
* 5. Products derived from this software may not be called "Apache"
|
||||||
|
* nor may "Apache" appear in their names without prior written
|
||||||
|
* permission of the Apache Software Foundation.
|
||||||
|
*
|
||||||
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
||||||
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||||
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
|
||||||
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
||||||
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||||
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||||
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||||
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||||
|
* SUCH DAMAGE.
|
||||||
|
* ====================================================================
|
||||||
|
*
|
||||||
|
* This software consists of voluntary contributions made by many
|
||||||
|
* individuals on behalf of the Apache Software Foundation. For more
|
||||||
|
* information on the Apache Software Foundation, please see
|
||||||
|
* <http://www.apache.org/>.
|
||||||
|
*/
|
||||||
|
package org.apache.commons.math.analysis;
|
||||||
|
|
||||||
|
import org.apache.commons.math.MathException;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Auxillary class for testing solvers.
|
||||||
|
*
|
||||||
|
* The function is extraordinarily well behaved around zero roots: it
|
||||||
|
* has an inflection point there (second order derivative is zero),
|
||||||
|
* which means linear approximation (Regula Falsi) will converge
|
||||||
|
* quadratically.
|
||||||
|
*
|
||||||
|
* @author pietsch at apache.org
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
public class SinFunction implements UnivariateRealFunction {
|
||||||
|
|
||||||
|
/* Evaluate sinus fuction.
|
||||||
|
* @see org.apache.commons.math.UnivariateRealFunction#value(double)
|
||||||
|
*/
|
||||||
|
public double value(double x) throws MathException {
|
||||||
|
return Math.sin(x);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* First derivative of sinus function
|
||||||
|
* @see org.apache.commons.math.UnivariateRealFunction#firstDerivative(double)
|
||||||
|
*/
|
||||||
|
public double firstDerivative(double x) throws MathException {
|
||||||
|
return Math.cos(x);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Second derivative of sinus function.
|
||||||
|
* Unsupported.
|
||||||
|
* @see org.apache.commons.math.UnivariateRealFunction#secondDerivative(double)
|
||||||
|
*/
|
||||||
|
public double secondDerivative(double x) throws MathException {
|
||||||
|
throw new UnsupportedOperationException();
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue