On 3/26/12 12:47 PM, André Roberge wrote:
In FiPy (a finite volume PDE solver), equations are "magically" set up as

eqX = TransientTerm() == ExplicitDiffusionTerm(coeff=D)

and solved via

eqX.solve(...)

How can eqX be anything than True or False?...  This must be via a redefinition of "==" 
but I can't see how that is done.  I did look at many of the source files, thinking that it must be 
via a redefinition of "__eq__" somewhere but with no luck.   Any pointers would be 
appreciated.

It's in the root base class Term:

  http://matforge.org/fipy/browser/trunk/fipy/terms/term.py#L374

--
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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