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 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.commons.math3.analysis;

Extension of UnivariateFunction representing a differentiable univariate real function. 
Deprecated:
as of 3.1 replaced by UnivariateDifferentiableFunction/**
 * Extension of {@link UnivariateFunction} representing a differentiable univariate real function.
 *
 * @deprecated as of 3.1 replaced by {@link org.apache.commons.math3.analysis.differentiation.UnivariateDifferentiableFunction}
 */
@Deprecated
public interface DifferentiableUnivariateFunction
    extends UnivariateFunction {

    
Returns the derivative of the function
Returns:
 the derivative function/**
     * Returns the derivative of the function
     *
     * @return  the derivative function
     */
    UnivariateFunction derivative();

}