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
-- 0.000218855 seconds elapsed
-- 0.000271361 seconds elapsed
-- 0.000245262 seconds elapsed
-- 0.000112724 seconds elapsed
-- 0.000274527 seconds elapsed
-- 0.000252309 seconds elapsed
-- 0.000111931 seconds elapsed
-- 0.00025771 seconds elapsed
-- 0.000251959 seconds elapsed
-- 0.000222962 seconds elapsed
-- 0.000279581 seconds elapsed
-- 0.000249697 seconds elapsed
-- 0.000112173 seconds elapsed
-- 0.000269625 seconds elapsed
-- 0.000241677 seconds elapsed
-- 0.000112403 seconds elapsed
-- 0.000249846 seconds elapsed
-- 0.00024321 seconds elapsed
-- 0.000111583 seconds elapsed
-- 0.000318988 seconds elapsed
-- 0.000376812 seconds elapsed
-- 0.000113681 seconds elapsed
-- 0.000322277 seconds elapsed
-- 0.00037827 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
|