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
-- 0.000100478 seconds elapsed
-- 0.000118375 seconds elapsed
-- 0.000103655 seconds elapsed
-- 0.000051352 seconds elapsed
-- 0.000119863 seconds elapsed
-- 0.000099296 seconds elapsed
-- 0.000051992 seconds elapsed
-- 0.00011201 seconds elapsed
-- 0.000098204 seconds elapsed
-- 0.000099072 seconds elapsed
-- 0.000117811 seconds elapsed
-- 0.000099244 seconds elapsed
-- 0.000050977 seconds elapsed
-- 0.000117197 seconds elapsed
-- 0.000099436 seconds elapsed
-- 0.000053335 seconds elapsed
-- 0.000112766 seconds elapsed
-- 0.000097871 seconds elapsed
-- 0.000053304 seconds elapsed
-- 0.000142056 seconds elapsed
-- 0.000137966 seconds elapsed
-- 0.000051727 seconds elapsed
-- 0.000137492 seconds elapsed
-- 0.000141233 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
|