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.math3.analysis;
018    
019    /**
020     * An interface representing a univariate matrix function.
021     *
022     * @version $Id: UnivariateMatrixFunction.java 1364387 2012-07-22 18:14:11Z tn $
023     * @since 2.0
024     */
025    public interface UnivariateMatrixFunction {
026    
027        /**
028         * Compute the value for the function.
029         * @param x the point for which the function value should be computed
030         * @return the value
031         */
032        double[][] value(double x);
033    
034    }