[GiNaC-list] real_part and imag_part
Vladimir V. Kisil
kisilv at maths.leeds.ac.uk
Wed Aug 9 09:12:29 CEST 2017
>>>>> On Tue, 8 Aug 2017 20:15:07 +0200, Jan Rheinländer <jrheinlaender at gmx.de> said:
JR> Hi, what is the logic here (example from ginsh)?
>> real_part(sqrt(-3));
JR> sqrt(-3)
>> imag_part(sqrt(-3));
JR> 0
>> real_part(sqrt(-1));
JR> 0
>> imag_part(sqrt(-1));
JR> 1
The problems seems to be in CLN library, since for the
GiNaC::numeric object sqrt(-3), real_part() and imag_part() are simply
calling cln::realpart() and cln::imagpart().
--
Vladimir V. Kisil http://www.maths.leeds.ac.uk/~kisilv/
Book: Geometry of Mobius Transformations http://goo.gl/EaG2Vu
Software: Geometry of cycles http://moebinv.sourceforge.net/
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