[PURRS-devel] purrs/src compute_prod.cc

[Alessandro Zaccagnini]

CVSROOT:	/cvs/purrs
Module name:	purrs
Changes by:	zaccagnini at cs.unipr.it	2004-10-15 15:28:28

Modified files:
	src            : compute_prod.cc 

Log message:
	Slightly amended some comments.
	Added the case that deals with the simplifications of products of the form
	prod(a,1,n,2*a-1) which had been overlooked.
	Previuosly, only the case prod(a,1,n,2*a+1) had been considered.
	This new case leads to more compact solution for the recurrence
	x(n) = (-1+2*n)*x(-1+n)
	for example.

Patches:
http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/purrs/src/compute_prod.cc.diff?cvsroot=purrs&r1=1.19&r2=1.20