Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 4026 by [email protected]: stats errors with floating point
parameters in Normal and density
http://code.google.com/p/sympy/issues/detail?id=4026
When using the sympy.stats.Normal function, specifying a floating point
mean or standard deviation causes a problem in the 'density' function. In
the examples below, example A produces an error, example B does not.
A:
from sympy.stats import *
from sympy import *
a,b=Normal("a",30.,3), Normal('b',0,2)
density(a+b)
output > sympy.polys.polyerrors.CoercionFailed: can't convert
-0.111111111111111 of type <class 'sympy.mpmath.ctx_mp_python.mpf'> from RR
to ZZ
B:
from sympy.stats import *
from sympy import *
a,b=Normal("a",30,3), Normal('b',0,2)
density(a+b)
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