When the computation takes a considerable time, this function can be used to decide if it will ever finish, or to get a feel for what is happening during the computation.
i1 : R = QQ[x,y,z]/ideal(x^8-z^6-y^2*z^4-z^3); |
i2 : time R' = integralClosure(R, Verbosity => 2)
[jacobian time .00034146 sec #minors 3]
integral closure nvars 3 numgens 1 is S2 codim 1 codimJ 2
[step 0:
radical (use minprimes) .00212865 seconds
idlizer1: .00662226 seconds
idlizer2: .0117595 seconds
minpres: .00843229 seconds
time .0408063 sec #fractions 4]
[step 1:
radical (use minprimes) .00220957 seconds
idlizer1: .0108546 seconds
idlizer2: .019749 seconds
minpres: .0126212 seconds
time .0594108 sec #fractions 4]
[step 2:
radical (use minprimes) .00225331 seconds
idlizer1: .0114217 seconds
idlizer2: .0395007 seconds
minpres: .00989237 seconds
time .0768955 sec #fractions 5]
[step 3:
radical (use minprimes) .00217628 seconds
idlizer1: .0119653 seconds
idlizer2: .0327237 seconds
minpres: .0255761 seconds
time .102876 sec #fractions 5]
[step 4:
radical (use minprimes) .0022188 seconds
idlizer1: .0120316 seconds
idlizer2: .0624868 seconds
minpres: .012766 seconds
time .122398 sec #fractions 5]
[step 5:
radical (use minprimes) .00447249 seconds
idlizer1: .0121379 seconds
time .0284802 sec #fractions 5]
-- used 0.434344 seconds
o2 = R'
o2 : QuotientRing
|
i3 : trim ideal R'
3 2 2 2 4 4
o3 = ideal (w z - x , w x - w , w x - y z - z - z, w x - w z,
4,0 4,0 1,1 1,1 4,0 1,1
------------------------------------------------------------------------
2 2 2 3 2 3 2 3 2 4 2 2 4 2
w w - x y z - x z - x , w + w x y - x*y z - x*y z - 2x*y z
4,0 1,1 4,0 4,0
------------------------------------------------------------------------
3 3 2 6 2 6 2
- x*z - x, w x - w + x y + x z )
4,0 1,1
o3 : Ideal of QQ[w , w , x..z]
4,0 1,1
|
i4 : icFractions R
3 2 2 4
x y z + z + z
o4 = {--, -------------, x, y, z}
z x
o4 : List
|
The exact information displayed may change.