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Commons Math example source code file (UnivariateRealIntegrator.java)

This example Commons Math source code file (UnivariateRealIntegrator.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons Math tags/keywords

convergenceexception, convergenceexception, convergingalgorithm, deprecated, deprecated, functionevaluationexception, functionevaluationexception, illegalargumentexception, illegalargumentexception, illegalstateexception, univariaterealintegrator

The Commons Math UnivariateRealIntegrator.java source code

/*
 * 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.math.analysis.integration;

import org.apache.commons.math.ConvergenceException;
import org.apache.commons.math.ConvergingAlgorithm;
import org.apache.commons.math.FunctionEvaluationException;
import org.apache.commons.math.analysis.UnivariateRealFunction;

/**
 * Interface for univariate real integration algorithms.
 *
 * @version $Revision: 811685 $ $Date: 2009-09-05 13:36:48 -0400 (Sat, 05 Sep 2009) $
 * @since 1.2
 */
public interface UnivariateRealIntegrator extends ConvergingAlgorithm {

   /**
     * Set the lower limit for the number of iterations.
     * <p>
     * Minimal iteration is needed to avoid false early convergence, e.g.
     * the sample points happen to be zeroes of the function. Users can
     * use the default value or choose one that they see as appropriate.</p>
     * <p>
     * A <code>ConvergenceException will be thrown if this number
     * is not met.</p>
     *
     * @param count minimum number of iterations
     */
    void setMinimalIterationCount(int count);

    /**
     * Get the lower limit for the number of iterations.
     *
     * @return the actual lower limit
     */
    int getMinimalIterationCount();

    /**
     * Reset the lower limit for the number of iterations to the default.
     * <p>
     * The default value is supplied by the implementation.</p>
     *
     * @see #setMinimalIterationCount(int)
     */
    void resetMinimalIterationCount();

    /**
     * Integrate the function in the given interval.
     *
     * @param min the lower bound for the interval
     * @param max the upper bound for the interval
     * @return the value of integral
     * @throws ConvergenceException if the maximum iteration count is exceeded
     * or the integrator detects convergence problems otherwise
     * @throws FunctionEvaluationException if an error occurs evaluating the
     * function
     * @throws IllegalArgumentException if min > max or the endpoints do not
     * satisfy the requirements specified by the integrator
     * @deprecated replaced by {@link #integrate(UnivariateRealFunction, double, double)}
     * since 2.0
     */
    @Deprecated
    double integrate(double min, double max) throws ConvergenceException,
        FunctionEvaluationException, IllegalArgumentException;

    /**
     * Integrate the function in the given interval.
     *
     * @param f the integrand function
     * @param min the lower bound for the interval
     * @param max the upper bound for the interval
     * @return the value of integral
     * @throws ConvergenceException if the maximum iteration count is exceeded
     * or the integrator detects convergence problems otherwise
     * @throws FunctionEvaluationException if an error occurs evaluating the
     * function
     * @throws IllegalArgumentException if min > max or the endpoints do not
     * satisfy the requirements specified by the integrator
     */
    double integrate(UnivariateRealFunction f, double min, double max) throws ConvergenceException,
        FunctionEvaluationException, IllegalArgumentException;

    /**
     * Get the result of the last run of the integrator.
     *
     * @return the last result
     * @throws IllegalStateException if there is no result available, either
     * because no result was yet computed or the last attempt failed
     */
    double getResult() throws IllegalStateException;

}

Other Commons Math examples (source code examples)

Here is a short list of links related to this Commons Math UnivariateRealIntegrator.java source code file:

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