Re: [pure-lang-users] C macros

[Eddie R. <er...@bm...>]

On Tue, 2008-08-26 at 18:32 +0200, Albert Graef wrote:
> Eddie Rucker wrote:
> > The only thing missing from Pure types is rationals.
> 
> Well, you can always map these to doubles when passing them to GSL.
> 

Agreed. Most of the time doubles or complex values is what many would
want anyway. I might use integers for neural networks (but not with
fuzzy values) or Number theory stuff so integers, double, and double
complex seem to be the best ones to implement. By the way, some matrices
with rational numbers can be rewritten to equivalent matrices with
integers. 

Example:
1/2x+5/6y=5/2
2/3x-1/2y=4

multiply both equations through by 6 ==>

3x+5y=15
4x-3y=24

e.r.