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1   /*
2    * Copyright 2003-2004 The Apache Software Foundation.
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 org.apache.commons.math.distribution;
17  
18  import org.apache.commons.math.MathException;
19  
20  /**
21   * Base interface for continuous distributions.
22   *
23   * @version $Revision: 155427 $ $Date: 2005-02-26 06:11:52 -0700 (Sat, 26 Feb 2005) $
24   */
25  public interface ContinuousDistribution extends Distribution {
26      
27      /**
28       * For this disbution, X, this method returns x such that P(X < x) = p.
29       * @param p the cumulative probability.
30       * @return x. 
31       * @throws MathException if the inverse cumulative probability can not be
32       *            computed due to convergence or other numerical errors.
33       */
34      double inverseCumulativeProbability(double p) throws MathException;
35  }