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added is_number property for meijerg #13558

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merged 3 commits into from
Nov 4, 2017
Merged

added is_number property for meijerg #13558

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4f2006f
added property is_number
ashishkg0022 Nov 3, 2017
55446f7
added tests for is_number property
ashishkg0022 Nov 3, 2017
f62afe1
modified to ignore bound symbols
ashishkg0022 Nov 3, 2017
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5 changes: 5 additions & 0 deletions sympy/functions/special/hyper.py
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Original file line number Diff line number Diff line change
Expand Up @@ -704,6 +704,11 @@ def delta(self):
c.f. references. """
return len(self.bm) + len(self.an) - S(len(self.ap) + len(self.bq))/2

@property
def is_number(self):
""" Returns true if expression has numeric data only. """
return not self.free_symbols


class HyperRep(Function):
"""
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3 changes: 3 additions & 0 deletions sympy/functions/special/tests/test_hyper.py
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Expand Up @@ -123,6 +123,9 @@ def test_meijer():
assert g.nu == 75
assert g.delta == -1
assert g.is_commutative is True
assert g.is_number is False
#issue 13071
assert meijerg([[],[]], [[S(1)/2],[0]], 1).is_number is True

assert meijerg([1, 2], [3], [4], [5], z).delta == S(1)/2

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