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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 Lower Square Root mid-point quadrature
22   * when lower bound integration bound lies at a function singularity.
23   */
24  public class LowerSquareRootMidPointQuadratureIntegrator
25          extends QuadratureIntegrator<LowerSquareRootMidPointQuadrature> {
26  
27     /**
28      * Constructor.
29      *
30      * @param a        Lower limit of integration.
31      * @param b        Upper limit of integration.
32      * @param listener listener to evaluate a single dimension function at required points.
33      * @param eps      required accuracy.
34      */
35     public LowerSquareRootMidPointQuadratureIntegrator(
36             final double a, final double b, final SingleDimensionFunctionEvaluatorListener listener, final double eps) {
37        super(new LowerSquareRootMidPointQuadrature(a, b, listener), eps);
38     }
39  
40     /**
41      * Constructor.
42      *
43      * @param a        Lower limit of integration.
44      * @param b        Upper limit of integration.
45      * @param listener listener to evaluate a single dimension function at required points.
46      */
47     public LowerSquareRootMidPointQuadratureIntegrator(
48             final double a, final double b, final SingleDimensionFunctionEvaluatorListener listener) {
49        this(a, b, listener, EPS);
50     }
51  
52     /**
53      * Gets type of quadrature.
54      *
55      * @return type of quadrature.
56      */
57     @Override
58     public QuadratureType getQuadratureType() {
59        return QuadratureType.LOWER_SQUARE_ROOT_MID_POINT;
60     }
61  }