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
-- 0.000132039 seconds elapsed
-- 0.000152582 seconds elapsed
-- 0.000130004 seconds elapsed
-- 0.000070361 seconds elapsed
-- 0.000156972 seconds elapsed
-- 0.000132836 seconds elapsed
-- 0.000069441 seconds elapsed
-- 0.000148652 seconds elapsed
-- 0.000130508 seconds elapsed
-- 0.000129465 seconds elapsed
-- 0.000150767 seconds elapsed
-- 0.000126495 seconds elapsed
-- 0.000068281 seconds elapsed
-- 0.000152232 seconds elapsed
-- 0.000129769 seconds elapsed
-- 0.000068808 seconds elapsed
-- 0.000146068 seconds elapsed
-- 0.000128821 seconds elapsed
-- 0.000070473 seconds elapsed
-- 0.000177189 seconds elapsed
-- 0.000171421 seconds elapsed
-- 0.000070646 seconds elapsed
-- 0.000176521 seconds elapsed
-- 0.000173087 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
|