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limit(1/x,x,0) without direction should be NaN #74

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cbm755 opened this issue Aug 14, 2014 · 4 comments
Open

limit(1/x,x,0) without direction should be NaN #74

cbm755 opened this issue Aug 14, 2014 · 4 comments
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@cbm755
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cbm755 commented Aug 14, 2014

or an error or something. SymPy's default to right-hand limit is not very intuitive.

I supposed I should just call SymPy with both - and + when user doesn't specify...

See here:
sympy/sympy#230
@cbm755
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cbm755 commented Jan 7, 2015

Also:

sympy/sympy#8194

@latot
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latot commented Sep 27, 2016

mm, maybe use a octsympy patch?, when the direction don't specified calc both and compare.

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latot commented Sep 27, 2016

mm, both issues are closed in upstream but don't is fixed...

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latot commented Sep 27, 2016

sympy/sympy#11667

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