Use R ::= QQ[x,y,z], DegRevLex;
Gin(Ideal(y^2xz, x^2zyz^2));
Ideal(x^2, xy^2, y^4)

Use R ::= QQ[x,y,z], Lex;
Gin(Ideal(y^2xz, x^2zyz^2), 10);  coeffs in [10, 10]
Ideal(x^2, xy^2, xyz^2, xz^4, y^6)

Use R ::= QQ[x,y,z], DegRevLex;  default range [10000, 10000]
Gin5(Ideal(y^2xz, x^2zyz^2));
Ideal(x^2, xy^2, y^4)

Use R ::= QQ[x,y,z], Lex;
Gin5(Ideal(y^2xz, x^2zyz^2), 2);  coeffs in [2,2], dangerously small:
 ==> answer might be wrong
