[SciPy-dev] Lambert W implementation

[Yosef Meller]

Hello,

I searched through scipy.special and I saw no implementation of the 
Lambert W function. I'd like to add one, but before I do I thought I'd ask:

1) Did I just miss it?
2) Is there any implementation you know off that is suitable for 
wrapping or a good reference for an algorithm (I can find some, but if 
there's something well known...)

Yours,
Yosef.