1 /*
2 * Copyright (C) 2023 Alberto Irurueta Carro (alberto@irurueta.com)
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package com.irurueta.numerical.integration;
17
18 import com.irurueta.algebra.WrongSizeException;
19
20 /**
21 * Computes function integration by using Romberg's method and exponential quadrature.
22 * Exponential quadrature allows improper integrations when upper bound is at infinity.
23 *
24 * @see ExponentialMidPointMatrixQuadrature
25 */
26 public class RombergExponentialMidPointQuadratureMatrixIntegrator
27 extends RombergMatrixIntegrator<ExponentialMidPointMatrixQuadrature> {
28
29 /**
30 * Constructor.
31 *
32 * @param a Lower limit of integration.
33 * @param listener listener to evaluate a single dimension matrix (multivariate) function at
34 * required points.
35 * @param eps required accuracy.
36 * @throws WrongSizeException if size notified by provided listener is invalid.
37 */
38 public RombergExponentialMidPointQuadratureMatrixIntegrator(
39 final double a, final MatrixSingleDimensionFunctionEvaluatorListener listener,
40 final double eps) throws WrongSizeException {
41 super(new ExponentialMidPointMatrixQuadrature(a, listener), eps);
42 }
43
44 /**
45 * Constructor with default accuracy.
46 *
47 * @param a Lower limit of integration.
48 * @param listener listener to evaluate a single dimension function at required points.
49 * @throws WrongSizeException if size notified by provided listener is invalid.
50 */
51 public RombergExponentialMidPointQuadratureMatrixIntegrator(
52 final double a, final MatrixSingleDimensionFunctionEvaluatorListener listener) throws WrongSizeException {
53 this(a, listener, EPS);
54 }
55
56 /**
57 * Gets type of quadrature.
58 *
59 * @return type of quadrature.
60 */
61 @Override
62 public QuadratureType getQuadratureType() {
63 return QuadratureType.EXPONENTIAL_MID_POINT;
64 }
65 }