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
18 package org.apache.commons.math4.legacy.analysis.solvers;
19
20 import org.apache.commons.math4.legacy.analysis.polynomials.PolynomialFunction;
21
22 /**
23 * Base class for solvers.
24 *
25 * @since 3.0
26 */
27 public abstract class AbstractPolynomialSolver
28 extends BaseAbstractUnivariateSolver<PolynomialFunction>
29 implements PolynomialSolver {
30 /** Function. */
31 private PolynomialFunction polynomialFunction;
32
33 /**
34 * Construct a solver with given absolute accuracy.
35 *
36 * @param absoluteAccuracy Maximum absolute error.
37 */
38 protected AbstractPolynomialSolver(final double absoluteAccuracy) {
39 super(absoluteAccuracy);
40 }
41 /**
42 * Construct a solver with given accuracies.
43 *
44 * @param relativeAccuracy Maximum relative error.
45 * @param absoluteAccuracy Maximum absolute error.
46 */
47 protected AbstractPolynomialSolver(final double relativeAccuracy,
48 final double absoluteAccuracy) {
49 super(relativeAccuracy, absoluteAccuracy);
50 }
51 /**
52 * Construct a solver with given accuracies.
53 *
54 * @param relativeAccuracy Maximum relative error.
55 * @param absoluteAccuracy Maximum absolute error.
56 * @param functionValueAccuracy Maximum function value error.
57 */
58 protected AbstractPolynomialSolver(final double relativeAccuracy,
59 final double absoluteAccuracy,
60 final double functionValueAccuracy) {
61 super(relativeAccuracy, absoluteAccuracy, functionValueAccuracy);
62 }
63
64 /**
65 * {@inheritDoc}
66 */
67 @Override
68 protected void setup(int maxEval, PolynomialFunction f,
69 double min, double max, double startValue) {
70 super.setup(maxEval, f, min, max, startValue);
71 polynomialFunction = f;
72 }
73
74 /**
75 * @return the coefficients of the polynomial function.
76 */
77 protected double[] getCoefficients() {
78 return polynomialFunction.getCoefficients();
79 }
80 }