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Java example source code file (SecondOrderIntegrator.java)

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

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Java - Java tags/keywords

mathillegalargumentexception, mathillegalstateexception, odeintegrator, secondorderintegrator

The SecondOrderIntegrator.java Java example 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.math3.ode;

import org.apache.commons.math3.exception.MathIllegalArgumentException;
import org.apache.commons.math3.exception.MathIllegalStateException;


/** This interface represents a second order integrator for
 * differential equations.
 *
 * <p>The classes which are devoted to solve second order differential
 * equations should implement this interface. The problems which can
 * be handled should implement the {@link
 * SecondOrderDifferentialEquations} interface.</p>
 *
 * @see SecondOrderDifferentialEquations
 * @since 1.2
 */

public interface SecondOrderIntegrator extends ODEIntegrator {

  /** Integrate the differential equations up to the given time
   * @param equations differential equations to integrate
   * @param t0 initial time
   * @param y0 initial value of the state vector at t0
   * @param yDot0 initial value of the first derivative of the state
   * vector at t0
   * @param t target time for the integration
   * (can be set to a value smaller thant <code>t0 for backward integration)
   * @param y placeholder where to put the state vector at each
   * successful step (and hence at the end of integration), can be the
   * same object as y0
   * @param yDot placeholder where to put the first derivative of
   * the state vector at time t, can be the same object as yDot0
   * @throws MathIllegalStateException if the integrator cannot perform integration
   * @throws MathIllegalArgumentException if integration parameters are wrong (typically
   * too small integration span)
   */
  void integrate(SecondOrderDifferentialEquations equations,
                 double t0, double[] y0, double[] yDot0,
                 double t, double[] y, double[] yDot)
      throws MathIllegalStateException, MathIllegalArgumentException;

}

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