>>>>> "Vadim" == Vadim V Zhytnikov writes:
Vadim> I just want to remind that quite a bit ago you promised
Vadim> to take a look at gamma-lanczos for gamma function at
Vadim> complex argument. gamma-lanczos code is already hare
Did I? My apologies for having forgotten!
What was the issue? That we don't evaluate gamma function for complex
args? This is mostly like because no one added the appropriate
knowledge to gamma to recognize complex numbers.
Vadim> In general I still don't understand what is preferred way
Vadim> to calculate complex valued expression involving
Vadim> elementary or special functions numerically?
Vadim> It seems that rectform is required for expression with
Vadim> elementary functions. Is is so for special functions.
Vadim> Which special functions can be evaluated numerically
Vadim> by Maxima CVS? At real arguments? At complex arguments?
As a initial answer, maxima doesn't know how to evaluate special
functions at complex args. :-( But there are exceptions of course.
Ray