Pynac-0.3.3 will sync to current GiNaC which has a few consequences in the
doctests.
Before releasing 0.3.3 it might be good to look at potential changes, in
order to check
if they fit into Sage (and possibly revert them before release of 0.3.3).
The following changed behaviour leads to a few fails:
sage: a,b = var('a b')
sage: abs(sqrt(x))
sqrt(abs(x))
sage: sqrt(abs(x)^2)
sqrt(x*conjugate(x))
sage: abs(x)^2
x*conjugate(x)
sage: A = abs((a+I*b))^2
sage: A
(a + I*b)*(conjugate(a) - I*conjugate(b))
sage: A.canonicalize_radical()
a^2 + b^2
sage: imag(A)
0
sage: imag(A.canonicalize_radical())
2*imag_part(a)*real_part(a) + 2*imag_part(b)*real_part(b)
sage: f = sqrt(abs(x)^2); f.canonicalize_radical()
x
Reason is probably these commits:
https://github.com/pynac/pynac/commit/b645d3c200e74531f735d786259d043cbffe758a
https://github.com/pynac/pynac/commit/565d0c3307b708cc266d27d3d1344e6de9fbc513
So, do we want this?
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