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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  /** Copolar trio with pole at point d in Glaisher’s Notation.
22   * <p>
23   * This is a container for the three subsidiary Jacobi elliptic functions
24   * {@code nd(u|m)}, {@code sd(u|m)}, and {@code cd(u|m)}.
25   * </p>
26   * @param <T> the type of the field elements
27   * @since 2.0
28   */
29  public class FieldCopolarD<T extends CalculusFieldElement<T>> {
30  
31      /** Value of the nd function. */
32      private final T nd;
33  
34      /** Value of the sd function. */
35      private final T sd;
36  
37      /** Value of the cd function. */
38      private final T cd;
39  
40      /** Simple constructor.
41       * @param trioN copolar trio with pole at point n in Glaisher’s Notation
42       */
43      FieldCopolarD(final FieldCopolarN<T> trioN) {
44          this.nd = trioN.dn().reciprocal();
45          this.sd = nd.multiply(trioN.sn());
46          this.cd = nd.multiply(trioN.cn());
47      }
48  
49      /** Get the value of the nd function.
50       * @return nd(u|m)
51       */
52      public T nd() {
53          return nd;
54      }
55  
56      /** Get the value of the sd function.
57       * @return sd(u|m)
58       */
59      public T sd() {
60          return sd;
61      }
62  
63      /** Get the value of the cd function.
64       * @return cd(u|m)
65       */
66      public T cd() {
67          return cd;
68      }
69  
70  }