Status: New
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 1481 by nicolas.pourcelot: Error raised:  
Matrix([[1,2],[3,4]])**Integer(2)
http://code.google.com/p/sympy/issues/detail?id=1481

>>> sympy.Matrix([[1, 2], [3, 4]])**sympy.Integer(2)
Traceback (most recent call last):
   File "<input>", line 1, in <module>
   File "~/sympy/matrices/matrices.py", line 408, in __pow__
     if isinstance(num, int) or isinstance(num, Integer):
NameError: global name 'Integer' is not defined

Integer is in fact not imported in matrices.py.

Patch will follow soon.

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