This again:
sympy.summation(sympy.S('z^k / k'), sympy.S('(k, 1, oo)'))
Piecewise((-log(1 - z), (z >= -1) & (z < 1)), (Sum(z**k/k, (k, 1, oo)),
True))
I don't know what ">=" and mean "<", since Sympy (a program about math) was
documented by a non-mathematician who neglected to define his mathematical
terms; but it looks a lot like Sympy is singling out a segment of the real
line instead of a disk in the complex plane. This program was designed from
the ground up by amateurs not up to the task.
--
You received this message because you are subscribed to the Google Groups
"sympy" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/sympy/e5896cd0-adf1-4447-94df-0c75b63c209an%40googlegroups.com.
