# [racket] Nice article on scientific computing in Racket

On 10/31/2014 05:34 AM, Konrad Hinsen wrote:
>* --On 27 octobre 2014 14:09:07 -0400 Bradley Lucier <lucier at purdue.edu>
*>* wrote:
*>*
*>>* heine:~/text/courses/computation/computational-reals/src> gsc
*>>* Gambit v4.7.3
*>>*
*>>>* (load "exact-reals")
*>*
*>* Is that Scheme library for exact reals available somewhere?
*
I put the current copy at
http://www.math.purdue.edu/~lucier/computable-reals/
together with the paper on which the code is based.
The code has some Gambit-isms. exact-reals.scm has a few general
comments, gives some compiler declarations, then loads utilities.scm,
basics.scm, and transcendentals.scm.
You can trust the code in utilities.scm and basics.scm; in
transcendentals.scm, not so much (but the computation of pi works, and
if you do argument reduction so arguments are < pi/4, so does sine and
cosine).
I welcome comments, corrections, etc.
Brad
PS: It's been slightly over 15 years since I came to visit you in
Orleans! Time flies.