DPRG mailing list archives: [unclassified] Re: [DPRG] DPRG Spring 2008 Outdoor Robot Challenge: 10 May 08

Sat Mar 8 10:20:07 CST 2008

On Sat, 8 Mar 2008 09:56:05 -0600, Dean Hall <dwhall256 at gmail.com> wrote:

> If atan gives you trouble, then use atan2(y,x), it uses the signs of  
> both arguments to determine the quadrant of the return value.  atan2 
> () should be available in most decent libm implementations.  avr-libc  
> has it.

This page has a decent implementation using atan2

http://www.movable-type.co.uk/scripts/LatLong.html

Later,
Jon

--------------------------------------------------------------
   Jon Hylands      Jon at huv.com      http://www.huv.com/jon

  Project: Micro Raptor (Small Biped Velociraptor Robot)
           http://www.huv.com/blog