Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 4082 by ppue...@googlemail.com: mellin_transform(1/(1 - x), x, s)
maximum recursion depth exceeded
http://code.google.com/p/sympy/issues/detail?id=4082
x, s = symbols('x s')
mellin_transform(1/(1 - x), x, s)
raises RuntimeError: maximum recursion depth exceeded
...
/home/pape/sympy/sympy/core/function.pyc in __new__(cls, *args, **options)
278
279 evaluate = options.get('evaluate', True)
--> 280 result = super(Function, cls).__new__(cls, *args, **options)
281 if not evaluate or not isinstance(result, cls):
282 return result
/home/pape/sympy/sympy/core/cache.pyc in wrapper(*args, **kw_args)
91 except (KeyError, TypeError):
92 pass
---> 93 r = func(*args, **kw_args)
94 try:
95 func_cache_it_cache[k] = r
/home/pape/sympy/sympy/core/function.pyc in __new__(cls, *args, **options)
124
125 if evaluate:
--> 126 evaluated = cls.eval(*args)
127 if evaluated is not None:
128 return evaluated
/home/pape/sympy/sympy/functions/elementary/complexes.pyc in eval(cls, arg)
402 if arg is S.NaN:
403 return S.NaN
--> 404 if arg.is_zero: # it may be an Expr that is zero
405 return S.Zero
406 if arg.is_nonnegative:
/home/pape/sympy/sympy/core/assumptions.pyc in getit(self)
142 if self._assumptions is self.default_assumptions:
143 self._assumptions = self.default_assumptions.copy()
--> 144 return _ask(fact, self)
145
146 getit.func_name = as_property(fact)
/home/pape/sympy/sympy/core/assumptions.pyc in _ask(fact, obj)
195 continue
196 if pk in handler_map:
--> 197 _ask(pk, obj)
198
199 # we might have found the value of fact
/home/pape/sympy/sympy/core/assumptions.pyc in _ask(fact, obj)
185 pass
186 else:
--> 187 a = evaluate(obj)
188 if a is not None:
189 assumptions.deduce_all_facts(((fact, a),))
/home/pape/sympy/sympy/core/power.pyc in _eval_is_real(self)
218
219 def _eval_is_real(self):
--> 220 real_b = self.base.is_real
221 if real_b is None:
222 return
/home/pape/sympy/sympy/core/assumptions.pyc in getit(self)
142 if self._assumptions is self.default_assumptions:
143 self._assumptions = self.default_assumptions.copy()
--> 144 return _ask(fact, self)
145
146 getit.func_name = as_property(fact)
/home/pape/sympy/sympy/core/assumptions.pyc in _ask(fact, obj)
195 continue
196 if pk in handler_map:
--> 197 _ask(pk, obj)
198
199 # we might have found the value of fact
/home/pape/sympy/sympy/core/assumptions.pyc in _ask(fact, obj)
195 continue
196 if pk in handler_map:
--> 197 _ask(pk, obj)
198
199 # we might have found the value of fact
/home/pape/sympy/sympy/core/assumptions.pyc in _ask(fact, obj)
185 pass
186 else:
--> 187 a = evaluate(obj)
188 if a is not None:
189 assumptions.deduce_all_facts(((fact, a),))
/home/pape/sympy/sympy/core/function.pyc in _eval_is_complex(self)
420
421 def _eval_is_complex(self):
--> 422 return fuzzy_and(a.is_complex for a in self.args)
423
424 def as_base_exp(self):
/home/pape/sympy/sympy/core/logic.pyc in fuzzy_and(args)
47
48 rv = True
---> 49 for ai in args:
50 ai = fuzzy_bool(ai)
51 if ai is False:
/home/pape/sympy/sympy/core/function.pyc in <genexpr>((a,))
420
421 def _eval_is_complex(self):
--> 422 return fuzzy_and(a.is_complex for a in self.args)
423
424 def as_base_exp(self):
RuntimeError: maximum recursion depth exceeded
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