Hi everyone,
I want a symbolic square root of a resultant of two polynomials and I get a
Taylor expansion in the complex numbers.
I use the following simple code :
A.<X> = PolynomialRing(SR)
g1,g2,g3=var('g1,g2,g3')
G = X^2+g1
H = X^2+g2*X+g3
sqrt(-G.resultant(H))
I get something like:
((0.E-18 + 1.00000000000000*I)*g3 + O(g3^17)) + ((0.E-19 +
...
0.500000000000000*I)*g2^2*g3^-15 + O(g3^-13))*g1^15 + O(g1^16)
That's not what I wanted, I just need a symbolic expression S for which we
have the equality S^2 = -G.resultant(H)
I have a Sage Version 6.4.1 on Linux.
--
You received this message because you are subscribed to the Google Groups
"sage-support" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.
