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 .000325821 sec #minors 3]
integral closure nvars 3 numgens 1 is S2 codim 1 codimJ 2
[step 0:
radical (use minprimes) .00173007 seconds
idlizer1: .00509088 seconds
idlizer2: .00885558 seconds
minpres: .00653426 seconds
time .0310281 sec #fractions 4]
[step 1:
radical (use minprimes) .00163058 seconds
idlizer1: .0082734 seconds
idlizer2: .0161013 seconds
minpres: .00976007 seconds
time .0456163 sec #fractions 4]
[step 2:
radical (use minprimes) .00158479 seconds
idlizer1: .00920614 seconds
idlizer2: .0269483 seconds
minpres: .00792616 seconds
time .0556853 sec #fractions 5]
[step 3:
radical (use minprimes) .00168719 seconds
idlizer1: .00986515 seconds
idlizer2: .0283776 seconds
minpres: .0215364 seconds
time .0920656 sec #fractions 5]
[step 4:
radical (use minprimes) .00171433 seconds
idlizer1: .0100069 seconds
idlizer2: .0573325 seconds
minpres: .0102497 seconds
time .109376 sec #fractions 5]
[step 5:
radical (use minprimes) .00170263 seconds
idlizer1: .00664533 seconds
time .0135863 sec #fractions 5]
-- used 0.350349 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.