Singular

LIB "nctools.lib";
ring r1 = 0,(x,y,z),(C,Dp);
def r2 = makeModElimRing(r1); setring r2; r2;   kill r2;
==> //   characteristic : 0
==> //   number of vars : 3
==> //        block   1 : ordering c
==> //        block   2 : ordering Dp
==> //                  : names    x y z
ring r3 = 0,(z,t),(wp(2,3),c);
def r2 = makeModElimRing(r3); setring r2; r2; kill r2;
==> //   characteristic : 0
==> //   number of vars : 2
==> //        block   1 : ordering c
==> //        block   2 : ordering wp
==> //                  : names    z t
==> //                  : weights  2 3
ring r4 = 0,(z,t,u,w),(a(1,2),C,wp(2,3,4,5));
def r2 = makeModElimRing(r4); setring r2; r2;
==> //   characteristic : 0
==> //   number of vars : 4
==> //        block   1 : ordering c
==> //        block   2 : ordering a
==> //                  : names    z t
==> //                  : weights  1 2
==> //        block   3 : ordering wp
==> //                  : names    z t u w
==> //                  : weights  2 3 4 5