Singular Manual: multRat

| ##### 7.8.20.0. multRat Procedure from library `dmodloc.lib` (see dmodloc_lib). Usage: multRat(v,w); v,w vectors Assume: Assume that v,w have exactly two components, second ones not 0. Return: vector, representing rational function (v[1]/v[2])*(w[1]/w[2]) Note: Possibly present non-commutative relations of the basering are ignored. Example:
    LIB "dmodloc.lib";
    ring r = 0,(x,y),dp;
    vector v = [x,y];
    vector w = [y,x];
    multRat(v,w);
    ==> gen(2)+gen(1)
    multRat(v,w) - [1,1];
    ==> 0

User manual for Singular version 4-1-1p4, 2018, generated by texi2html.