001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.commons.math.distribution;
018    
019    import org.apache.commons.math.MathException;
020    
021    /**
022     * Base interface for continuous distributions.
023     *
024     * @version $Revision: 670469 $ $Date: 2008-06-23 04:01:38 -0400 (Mon, 23 Jun 2008) $
025     */
026    public interface ContinuousDistribution extends Distribution {
027        
028        /**
029         * For this distribution, X, this method returns x such that P(X < x) = p.
030         * @param p the cumulative probability.
031         * @return x. 
032         * @throws MathException if the inverse cumulative probability can not be
033         *            computed due to convergence or other numerical errors.
034         */
035        double inverseCumulativeProbability(double p) throws MathException;
036    }