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 .00046026 sec #minors 3]
integral closure nvars 3 numgens 1 is S2 codim 1 codimJ 2
[step 0:
radical (use minprimes) .00285192 seconds
idlizer1: .008613 seconds
idlizer2: .0153096 seconds
minpres: .0104265 seconds
time .0525665 sec #fractions 4]
[step 1:
radical (use minprimes) .00280139 seconds
idlizer1: .0138068 seconds
idlizer2: .0260792 seconds
minpres: .0162438 seconds
time .0767301 sec #fractions 4]
[step 2:
radical (use minprimes) .00277971 seconds
idlizer1: .0145729 seconds
idlizer2: .0364787 seconds
minpres: .013042 seconds
time .0848928 sec #fractions 5]
[step 3:
radical (use minprimes) .00289116 seconds
idlizer1: .0155731 seconds
idlizer2: .0440669 seconds
minpres: .0390755 seconds
time .141629 sec #fractions 5]
[step 4:
radical (use minprimes) .00291497 seconds
idlizer1: .0163258 seconds
idlizer2: .0864176 seconds
minpres: .0167834 seconds
time .157597 sec #fractions 5]
[step 5:
radical (use minprimes) .00284131 seconds
idlizer1: .0107547 seconds
time .023472 sec #fractions 5]
-- used 0.541244 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.