Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!samsung!think.com!snorkelwacker.mit.edu!ai-lab!ai.mit.edu!hqm
From: hqm@ai.mit.edu (Henry Minsky)
Newsgroups: comp.dsp
Subject: Re: Sine-wave generator algorithms
Message-ID: <15344@life.ai.mit.edu>
Date: 27 Apr 91 01:06:01 GMT
References: <1750@tekig7.MAP.TEK.COM> <1991Apr15.081550.26195@bernina.ethz.ch> <1991Apr24.050126.8668@cs.cmu.edu> <wilf.672514636@rigel.sce.carleton.ca>
Sender: news@ai.mit.edu
Organization: MIT Artificial Intelligence Laboratory
Lines: 10

How about this for a sine wave generator ::

x = initial val
y = initial val
epsilon = small number

loop repeat 
 { x =  x + epsilon*y
   y =  y - epsilon*x
 }