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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.analysis.differentiation;
18  
19  /** Interface representing an object holding partial derivatives.
20   * @see Derivative
21   * @see TaylorMap
22   * @see FieldDerivative
23   * @see FieldTaylorMap
24   * @since 3.1
25   */
26  public interface DifferentialAlgebra {
27  
28      /** Get the number of free parameters.
29       * @return number of free parameters
30       */
31      int getFreeParameters();
32  
33      /** Get the maximum derivation order.
34       * @return maximum derivation order
35       */
36      int getOrder();
37  
38  }