Comment #4 on issue 1598 by ondrej.certik: New polynomials manipulation
module
http://code.google.com/p/sympy/issues/detail?id=1598
Mateusz, would you manage to use cython to speed up the factorization a
bit? Just for
fun, so that I can show it on scipy09, as an example of using cython. Here
is the
result in Sage, that uses pari:
sage: var("x y z")
(x, y, z)
sage: a = (x+y+z)**20
sage: b = a.expand()
sage: time factor(b)
CPU times: user 0.19 s, sys: 0.00 s, total: 0.19 s
Wall time: 0.30 s
(x + y + z)^20
e.g. it's only 10x faster. Pari is optimized in C, so --- I don't know, but
cython
can speed up things easily by a factor of 10x in many cases. Let's try it?
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