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 */
017package org.apache.commons.math3.dfp;
018
019/**
020 * An interface representing a univariate {@link Dfp} function.
021 *
022 */
023public interface UnivariateDfpFunction {
024
025    /**
026     * Compute the value of the function.
027     *
028     * @param x Point at which the function value should be computed.
029     * @return the value.
030     * @throws IllegalArgumentException when the activated method itself can
031     * ascertain that preconditions, specified in the API expressed at the
032     * level of the activated method, have been violated.  In the vast
033     * majority of cases where Commons-Math throws IllegalArgumentException,
034     * it is the result of argument checking of actual parameters immediately
035     * passed to a method.
036     */
037    Dfp value(Dfp x);
038
039}