Singular

LIB "nchilbert.lib";
def A = makeUsl2(); setring A;
ideal I = e,h-1; I = std(I);
ncHilbertMultiplicity(I); // multiplicity of A/I
==> Warning: the input generators are not a Groebner basis
==> The result might have no meaning
==> 1
ideal J = I, f^2; J = std(J);
ncHilbertMultiplicity(J);
==> Warning: the input generators are not a Groebner basis
==> The result might have no meaning
==> 2
// now the same algebra with weights 1,2,3
ring r = 0,(e,f,h),wp(1,2,3);
matrix D[3][3]; D[1,2]=-h; D[1,3]=2*e;D[2,3]=-2*f;
def R = nc_algebra(1,D); setring R;
ideal I = imap(A,I); I = std(I);
ncHilbertMultiplicity(I);
==> Warning: the input generators are not a Groebner basis
==> The result might have no meaning
==> 3
matrix M[2][5] =
e,h-1,f^2, 0,0,
0,0,0, e,h+1;
module G = std(M);
print(G);
==> e,0,h-1,0,  f2,
==> 0,e,0,  h+1,0  
ncHilbertMultiplicity(G);
==> 3