Subj : Re: Rational Trig
To   : comp.programming
From : Rob Thorpe
Date : Mon Sep 19 2005 01:31 pm

DarkD wrote:
> How big an impact do you think rational trig will have on future coding of
> 3d games, particaulalry because any use of the inifinte sin cos series is
> now redudant and not needed. hardware trig calculators that don't involve
> recurssion or lookup tables?
> http://web.maths.unsw.edu.au.nyud.net:8090/~norman/papers/Chapter1.pdf

It depends to some extent how accurate the sine or cosine need be.  For
simple purposes sine and cosine can often be replaced by the first 2 or
3 terms of their Maclaurin series with little effect on the output.
These terms can be calculated quite quickly.

.