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.numerical.SingleDimensionFunctionEvaluatorListener;
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 ExponentialMidPointQuadrature
25 */
26 public class RombergExponentialMidPointQuadratureIntegrator extends RombergIntegrator<ExponentialMidPointQuadrature> {
27
28 /**
29 * Constructor.
30 *
31 * @param a Lower limit of integration.
32 * @param listener listener to evaluate a single dimension function at required points.
33 * @param eps required accuracy.
34 */
35 public RombergExponentialMidPointQuadratureIntegrator(
36 final double a, final SingleDimensionFunctionEvaluatorListener listener, final double eps) {
37 super(new ExponentialMidPointQuadrature(a, listener), eps);
38 }
39
40 /**
41 * Constructor with default accuracy.
42 *
43 * @param a Lower limit of integration.
44 * @param listener listener to evaluate a single dimension function at required points.
45 */
46 public RombergExponentialMidPointQuadratureIntegrator(
47 final double a, final SingleDimensionFunctionEvaluatorListener listener) {
48 this(a, listener, EPS);
49 }
50
51 /**
52 * Gets type of quadrature.
53 *
54 * @return type of quadrature.
55 */
56 @Override
57 public QuadratureType getQuadratureType() {
58 return QuadratureType.EXPONENTIAL_MID_POINT;
59 }
60 }