    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
    018    package org.apache.commons.math3.analysis.function;
    019
    020    import org.apache.commons.math3.analysis.DifferentiableUnivariateFunction;
    021    import org.apache.commons.math3.analysis.differentiation.DerivativeStructure;
    022    import org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction;
    023    import org.apache.commons.math3.util.FastMath;
    024
    025    /**
    026     * Hyperbolic sine function.
    027     *
    028     * @since 3.0
    029     * @version $Id: Sinh.java 1424087 2012-12-19 20:32:50Z luc $
    030     */
    031    public class Sinh implements UnivariateDifferentiableFunction, DifferentiableUnivariateFunction {
    032        /** {@inheritDoc} */
    033        public double value(double x) {
    034            return FastMath.sinh(x);
    035        }
    036
    037        /** {@inheritDoc}
    038         * @deprecated as of 3.1, replaced by {@link #value(DerivativeStructure)}
    039         */
    040        @Deprecated
    041        public DifferentiableUnivariateFunction derivative() {
    042            return new Cosh();
    043        }
    044
    045        /** {@inheritDoc}
    046         * @since 3.1
    047         */
    048        public DerivativeStructure value(final DerivativeStructure t) {
    049            return t.sinh();
    050        }
    051
    052    }