Here you can find the source of sqr(float x)
static public float sqr(float x)
//package com.java2s; /*/*from w w w . j av a 2 s. c om*/ * Copyright (c) 2006-2011 Karsten Schmidt * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * http://creativecommons.org/licenses/LGPL/2.1/ * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ public class Main { static public float sqr(float x) { return x * x; } static public int sqr(int x) { return x * x; } static public double sqr(double x) { return x * x; } }