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Java example source code file (FieldButcherArrayProvider.java)

This example Java source code file (FieldButcherArrayProvider.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

fieldbutcherarrayprovider, realfieldelement

The FieldButcherArrayProvider.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.nonstiff;

import org.apache.commons.math3.RealFieldElement;

/** This interface represents an integrator  based on Butcher arrays.
 * @see RungeKuttaFieldIntegrator
 * @see EmbeddedRungeKuttaFieldIntegrator
 * @param <T> the type of the field elements
 * @since 3.6
 */

public interface FieldButcherArrayProvider<T extends RealFieldElement {

    /** Get the time steps from Butcher array (without the first zero).
     * @return time steps from Butcher array (without the first zero
     */
    T[] getC();

    /** Get the internal weights from Butcher array (without the first empty row).
     * @return internal weights from Butcher array (without the first empty row)
     */
    T[][] getA();

    /** Get the external weights for the high order method from Butcher array.
     * @return external weights for the high order method from Butcher array
     */
    T[] getB();

}

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