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7.7.22.0. simplifyRat
Procedure from library dmodloc.lib (see dmodloc_lib).

Usage:
simplifyRat(v); v vector

Assume:
Assume that v has exactly two components, second one not 0.

Return:
vector, representing simplified rational function v[1]/v[2]

Note:
Possibly present non-commutative relations of the basering are ignored.

Example:
 
LIB "dmodloc.lib";
ring r = 0,(x,y),dp;
vector v = [x2-1,x+1];
simplifyRat(v);
==> x*gen(1)+gen(2)-gen(1)
simplifyRat(v) - [x-1,1];
==> 0