Returns a pseudo-random (approximately) normally distributed double with mean 0.0 and standard deviation 1.0. - Android java.util

Android examples for java.util:Random Double

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Description

Returns a pseudo-random (approximately) normally distributed double with mean 0.0 and standard deviation 1.0.

Demo Code

/*//  ww w .  ja  v  a 2 s  .com
 * Copyright (C) 2016 venshine.cn@gmail.com
 *
 * Licensed 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//package com.java2s;
import java.util.Random;

public class Main {
    /**
     * Returns a pseudo-random (approximately) normally distributed {@code double} with mean 0.0 and standard deviation
     * 1.0. This method uses the <i>polar method</i> of G. E. P. Box, M. E. Muller, and G. Marsaglia, as described by
     * Donald E. Knuth in <i>The Art of Computer Programming, Volume 2: Seminumerical Algorithms</i>, section 3.4.1,
     * subsection C, algorithm P.
     *
     * @return
     */
    public static double randomGaussian() {
        Random random = new Random();
        return random.nextGaussian();
    }
}

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