Hello! I am running the same piece of maple code on different machines, and I have noticed that the powerset function returns the sets in a different order. For example,

Maple 11 (X86 64 LINUX)

> powerset(3);
            {{}, {1, 2, 3}, {2, 3}, {3}, {1, 3}, {1}, {2}, {1, 2}}

Maple 14

> powerset(3);
            {{}, {1}, {2},...

Hello! I have an ideal in 12 variables. I wish to eliminate the last four. I did:

ord := lexdeg([x[9],x[10],x[11],x[12]], [x[1],...,x[8]]);

gb_myI := Basis(myI, ord);

However, the resulting Grobner basis had all 12 variables. Did I misapply the lexdeg? Or perhaps I don't quite understand the eliminnation order?

Any help or comments would be appreciated!

Best,

Susan