Status: Accepted
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 3101 by [email protected]: assertion error in Mul.flatten
http://code.google.com/p/sympy/issues/detail?id=3101
print ((-2*I)**Rational(5,3))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "sympy\core\decorators.py", line 65, in __sympifyit_wrapper
return func(a, sympify(b, strict=True))
File "sympy\core\decorators.py", line 105, in binary_op_wrapper
return func(self, other)
File "sympy\core\expr.py", line 129, in __pow__
return Pow(self, other)
File "sympy\core\cache.py", line 90, in wrapper
func_cache_it_cache[k] = r = func(*args, **kw_args)
File "sympy\core\power.py", line 84, in __new__
obj = b._eval_power(e)
File "sympy\core\mul.py", line 556, in _eval_power
return Mul(*[Pow(s, e) for s in nonneg + neg + [coeff]])* \
File "sympy\core\cache.py", line 90, in wrapper
func_cache_it_cache[k] = r = func(*args, **kw_args)
File "sympy\core\operations.py", line 40, in __new__
c_part, nc_part, order_symbols = cls.flatten(args)
File "sympy\core\mul.py", line 439, in flatten
assert p.is_Pow and p.base is S.NegativeOne
AssertionError
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