1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.math.analysis; 18 19 /** 20 * A concrete {@link UnivariateRealSolverFactory}. This is the default solver factory 21 * used by commons-math. 22 * <p> 23 * The default solver returned by this factory is a {@link BrentSolver}.</p> 24 * 25 * @version $Revision: 615734 $ $Date: 2008-01-27 23:10:03 -0700 (Sun, 27 Jan 2008) $ 26 */ 27 public class UnivariateRealSolverFactoryImpl extends UnivariateRealSolverFactory { 28 29 /** 30 * Default constructor. 31 */ 32 public UnivariateRealSolverFactoryImpl() { 33 } 34 35 /** 36 * Create a new {@link UnivariateRealSolver} for the given function. The 37 * actual solver returned is determined by the underlying factory. 38 * 39 * This factory returns a {@link BrentSolver} instance. 40 * 41 * @param f the function. 42 * @return the new solver. 43 */ 44 public UnivariateRealSolver newDefaultSolver(UnivariateRealFunction f) { 45 return newBrentSolver(f); 46 } 47 48 /** 49 * Create a new {@link UnivariateRealSolver} for the given function. The 50 * solver is an implementation of the bisection method. 51 * @param f the function. 52 * @return the new solver. 53 */ 54 public UnivariateRealSolver newBisectionSolver(UnivariateRealFunction f) { 55 return new BisectionSolver(f); 56 } 57 58 /** 59 * Create a new {@link UnivariateRealSolver} for the given function. The 60 * solver is an implementation of the Brent method. 61 * @param f the function. 62 * @return the new solver. 63 */ 64 public UnivariateRealSolver newBrentSolver(UnivariateRealFunction f) { 65 return new BrentSolver(f); 66 } 67 68 /** 69 * Create a new {@link UnivariateRealSolver} for the given function. The 70 * solver is an implementation of Newton's Method. 71 * @param f the function. 72 * @return the new solver. 73 */ 74 public UnivariateRealSolver newNewtonSolver( 75 DifferentiableUnivariateRealFunction f) { 76 77 return new NewtonSolver(f); 78 } 79 80 /** 81 * Create a new {@link UnivariateRealSolver} for the given function. The 82 * solver is an implementation of the secant method. 83 * @param f the function. 84 * @return the new solver. 85 */ 86 public UnivariateRealSolver newSecantSolver(UnivariateRealFunction f) { 87 return new SecantSolver(f); 88 } 89 }