Computer algebra in R - would that be an idea??
yacas does have the Groebner function, e.g.
In> Groebner({x*(y-1),y*(x-1)})
Out> {x*y-x,x*y-y,y-x,y^2-y};
I stand corrected. Simon.
Simon Blomberg, B.Sc.(Hons.), Ph.D, M.App.Stat. Centre for Resource and Environmental Studies The Australian National University Canberra ACT 0200 Australia T: +61 2 6125 7800 F: +61 2 6125 0757 CRICOS Provider # 00120C