On Sunday, June 7, 2015 at 2:52:52 PM UTC+3, Paul Royik wrote:
>
> Why 1/0 is complex infinity and log(0) is complex infinity?
>
> They are shorthand notations for the limits of  1/z  and  log(z)  as  z  
tends to  0. The default domain in SymPy is the complex field, so the 
limits are computed in a complex neighbourhood of  0.

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