com.golemgame.util.SqrtFunction.java Source code

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Here is the source code for com.golemgame.util.SqrtFunction.java

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/*******************************************************************************
 * Copyright 2008, 2009, 2010 Sam Bayless.
 * 
 *     This file is part of Golems.
 * 
 *     Golems is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * 
 *     Golems is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 * 
 *     You should have received a copy of the GNU General Public License
 *     along with Golems. If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package com.golemgame.util;

import java.io.Serializable;

import org.apache.commons.math.FunctionEvaluationException;
import org.apache.commons.math.analysis.UnivariateRealFunction;

public class SqrtFunction implements UnivariateRealFunction, Serializable {

    private static final long serialVersionUID = 1L;

    public double value(double arg0) throws FunctionEvaluationException {
        if (arg0 <= 0)
            return 0;
        return Math.sqrt(arg0);
    }

}