From: jlouwere AT galaxy DOT csc DOT calpoly DOT edu (Jan Louwerens)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: doubles vs. floats
Date: 29 Jan 1997 16:53:10 GMT
Organization: Cal Poly Computer Science Dept.
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sci/econ/15305 <wpenros comp.os.msdos.djgpp:12480

Ryan Blazecka (eblazecka AT bc DOT sympatico DOT ca) wrote:
: Michael Phelps wrote:

: > This may sound a little counterintuitive, but sometimes you can get better
: > results by using doubles rather than floats.

: Why is this? I've heard it many times, but never understood why.

Yes, this is true. It is because every float is is converted into a 
double before every operation and is then converted back into a float at 
the end of the operation. (FPU only handles double, not float? I'm not 
sure). If you want speed, use all doubles instead of floats. For size, 
use floats.


JL