On 2/12/12 6:41 AM, Steven D'Aprano wrote:
This is only peripherally a Python problem, but in case anyone has any
good ideas I'm going to ask it.
I have a routine to calculate an approximation of Lambert's W function,
and then apply a root-finding technique to improve the approximation.
This mostly works well, but sometimes the root-finder gets stuck in a
cycle.
I don't have any advice for fixing your code, per se, but I would just grab
mpmath and use their lambertw function:
http://mpmath.googlecode.com/svn/trunk/doc/build/functions/powers.html#lambert-w-function
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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