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1   /*
2    * Licensed to the Hipparchus project 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 Hipparchus project 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    *      https://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.hipparchus.special.elliptic.jacobi;
18  
19  import org.hipparchus.CalculusFieldElement;
20  
21  /** Values of {@link FieldJacobiTheta Jacobi theta} functions.
22   * <p>
23   * This is a container for the four Jacobi theta functions
24   * θ₁(z|τ), θ₂(z|τ), θ₃(z|τ), and θ₄(z|τ).
25   * </p>
26   * @param <T> the type of the field elements
27   * @see FieldJacobiTheta
28   * @since 2.0
29   */
30  public class FieldTheta<T extends CalculusFieldElement<T>> {
31  
32      /** Value of the θ₁(z|τ) function. */
33      private final T theta1;
34  
35      /** Value of the θ₂(z|τ) function. */
36      private final T theta2;
37  
38      /** Value of the θ₃(z|τ) function. */
39      private final T theta3;
40  
41      /** Value of the θ₄(z|τ) function. */
42      private final T theta4;
43  
44      /** Simple constructor.
45       * @param theta1 value of the θ₁(z|τ) function
46       * @param theta2 value of the θ₂(z|τ) function
47       * @param theta3 value of the θ₃(z|τ) function
48       * @param theta4 value of the θ₄(z|τ) function
49       */
50      FieldTheta(final T theta1, final T theta2,
51                 final T theta3, final T theta4) {
52          this.theta1 = theta1;
53          this.theta2 = theta2;
54          this.theta3 = theta3;
55          this.theta4 = theta4;
56      }
57  
58      /** Get the value of the θ₁(z|τ) function.
59       * @return θ₁(z|τ)
60       */
61      public T theta1() {
62          return theta1;
63      }
64  
65      /** Get the value of the θ₂(z|τ) function.
66       * @return θ₂(z|τ)
67       */
68      public T theta2() {
69          return theta2;
70      }
71  
72      /** Get the value of the θ₃(z|τ) function.
73       * @return θ₃(z|τ)
74       */
75      public T theta3() {
76          return theta3;
77      }
78  
79      /** Get the value of the θ₄(z|τ) function.
80       * @return θ₄(z|τ)
81       */
82      public T theta4() {
83          return theta4;
84      }
85  
86  }