    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.dfp;
    018
    019    /**
    020     * An interface representing a univariate {@link Dfp} function.
    021     *
    022     * @version $Id: UnivariateDfpFunction.java 1416643 2012-12-03 19:37:14Z tn $
    023     */
    024    public interface UnivariateDfpFunction {
    025
    026        /**
    027         * Compute the value of the function.
    028         *
    029         * @param x Point at which the function value should be computed.
    030         * @return the value.
    031         * @throws IllegalArgumentException when the activated method itself can
    032         * ascertain that preconditions, specified in the API expressed at the
    033         * level of the activated method, have been violated.  In the vast
    034         * majority of cases where Commons-Math throws IllegalArgumentException,
    035         * it is the result of argument checking of actual parameters immediately
    036         * passed to a method.
    037         */
    038        Dfp value(Dfp x);
    039
    040    }