i1 : R = QQ[x,y];
|
i2 : S = subring {x*y, x^2*y, x^3*y};
|
i3 : gens S
o3 = | xy x2y x3y |
1 3
o3 : Matrix R <--- R
|
i4 : SB = sagbi(S, Limit => 3);
|
i5 : gens SB
o5 = | xy x2y |
1 2
o5 : Matrix R <--- R
|
i6 : isSAGBI S
-- 0.000158254 seconds elapsed
-- 0.000191684 seconds elapsed
-- 0.000157399 seconds elapsed
-- 0.000088307 seconds elapsed
-- 0.000174095 seconds elapsed
-- 0.000184946 seconds elapsed
-- 0.000084538 seconds elapsed
-- 0.000159931 seconds elapsed
-- 0.000151422 seconds elapsed
-- 0.000176522 seconds elapsed
-- 0.000165092 seconds elapsed
-- 0.000156592 seconds elapsed
-- 0.000100326 seconds elapsed
-- 0.000191529 seconds elapsed
-- 0.000160199 seconds elapsed
-- 0.000091967 seconds elapsed
-- 0.000215563 seconds elapsed
-- 0.000161639 seconds elapsed
-- 0.000104149 seconds elapsed
-- 0.000238145 seconds elapsed
-- 0.000217232 seconds elapsed
-- 0.000084671 seconds elapsed
-- 0.000217215 seconds elapsed
-- 0.000242295 seconds elapsed
timing raw subduction
timing raw subduction
timing raw subduction
timing raw subduction
timing raw subduction
timing raw subduction
timing raw subduction
timing raw subduction
o6 = true
|
i7 : isSAGBI SB
o7 = false
|