Issue 1179: Printing a Sum with no explicit limits fails
http://code.google.com/p/sympy/issues/detail?id=1179
New issue report by ellisonbg:
The Sum class is designed to take limits of the form:
s = Sum(f(i))
s = Sum(f(i),i)
But, when you print such a sum you get an error:
sympy/sympy/sympy/printing/str.pyc in stringify(self, args, sep, level)
22
23 def stringify(self, args, sep, level=0):
---> 24 return sep.join([self.parenthesize(item, level) for item in
args])
25
26 def emptyPrinter(self, expr):
TypeError: 'Symbol' object is not iterable
Issue attributes:
Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
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