/* * Created on Nov 29, 2004 * * Copyright (c) 2005 Peter Johan Salomonsen (http://www.petersalomonsen.com) * * http://www.frinika.com * * This file is part of Frinika. * * Frinika 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 2 of the License, or * (at your option) any later version. * * Frinika 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 Frinika; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package com.frinika.synth.waveforms; /** * @author Peter Johan Salomonsen * */ public class Sinus { static final float[] sinus = new float[(int)(2 *Math.PI * 1000)]; static { for(float n=0;n<sinus.length;n++) { sinus[(int)n] = (float)Math.sin((n / (float)sinus.length) * Math.PI * 2.0); } } public static final float getSin(float degree) { return(sinus[(int)((degree*1000) % sinus.length)]); } public static void main(String[] args) { long start = System.currentTimeMillis(); for(float n=0;n<12;n+=0.0001) getSin(n); System.out.println((System.currentTimeMillis()-start)); } }