Status: Accepted
Owner: ----
Labels: Type-Defect Priority-High NeedsReview smichr
New issue 3133 by smi...@gmail.com: e.evalf(1) does not mean evaluate to 1
decimal place
http://code.google.com/p/sympy/issues/detail?id=3133
There is a very serious logical error in the new assumptions system when it
comes to this: in a couple of places (handlers/ntheory.py and
handlers/sets) it is using e.evalf(1) to tell is something is an integer.
This will never pass for anything but powers of 10 since evalf evaluates 1
significant digit; it is not the same as round(e, 1) (which is also not a
good way to test if something is an integer).
see https://github.com/sympy/sympy/pull/1068
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