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
-- 0.000106753 seconds elapsed
-- 0.000117912 seconds elapsed
-- 0.000105739 seconds elapsed
-- 0.000056578 seconds elapsed
-- 0.000130816 seconds elapsed
-- 0.000112383 seconds elapsed
-- 0.000057288 seconds elapsed
-- 0.000123785 seconds elapsed
-- 0.000144983 seconds elapsed
-- 0.000106711 seconds elapsed
-- 0.000125937 seconds elapsed
-- 0.000106101 seconds elapsed
-- 0.000080823 seconds elapsed
-- 0.000135316 seconds elapsed
-- 0.000122641 seconds elapsed
-- 0.000055093 seconds elapsed
-- 0.000119405 seconds elapsed
-- 0.000110168 seconds elapsed
-- 0.000055505 seconds elapsed
-- 0.000150365 seconds elapsed
-- 0.000158359 seconds elapsed
-- 0.000054193 seconds elapsed
-- 0.000165563 seconds elapsed
-- 0.000156896 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
|