Status: Accepted
Owner: asmeurer
Labels: Type-Defect Priority-Medium
New issue 2616 by asmeurer: Ternary pow()
http://code.google.com/p/sympy/issues/detail?id=2616
According to http://docs.python.org/release/2.5.2/ref/numeric-types.html,
__pow__ should define a third, optional argument to work with ternary
pow(). We should do that for at least Integer, though it would be cool to
do it for arbitrary expressions (this will require Mod from issue 2490, and
also some care to make sure that it still evaluates efficiently when values
are substituted in). Right now, we get:
In [1]: pow(S(2), S(3), S(5))
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
/Users/aaronmeurer/Documents/python/sympy/sympy/<ipython console> in
<module>()
TypeError: __sympifyit_wrapper() takes exactly 2 arguments (3 given)
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