On Wed, Feb 11, 2009 at 19:11, Ondrej Certik <ond...@certik.cz> wrote:
>
> On Wed, Feb 11, 2009 at 4:55 PM, Ted Horst <ted.ho...@earthlink.net> wrote:
>>
>> I'm not sure if __call__ is supposed to do anything on an expression,
>> but the following doesn't seem useful:
>>
>> >>> import sympy as sp
>> >>> x = sp.Symbol('x')
>> >>> e = x**2 -7
>> >>> e(4)
>> Traceback (most recent call last):
>> File "<stdin>", line 1, in <module>
>> File "/Library/Python/2.5/site-packages/sympy/core/basic.py", line
>> 1945, in __call__
>> return Function(self[0])(*args)
>> NameError: global name 'Function' is not defined
>
> Thanks for bringing it. We have actually a long thread about it here:
>
> http://groups.google.com/group/sympy-patches/browse_thread/thread/628ebc799ee57ec1/
>
> If you'd like to help to get this fixed, it'd be really awesome. I
> think Lance is not working on this anymore, so this issue is open for
> anyone to fix. :)
Well, you should at least raise NotImplementedError until then.
--
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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