I'm happy to report another open source computer
algebra system said my input equals zero.
You can see this is so at Bash's shell command
line with
$ mathomatic -e "((a - b) - (((a - b) + (c - d) + (e - f))/3)) + ((c - d) -
(((a - b) + (c - d) + (e - f))/3)) + (e - f) - ((a - b) + (c - d) + (e - f))/3"
simplify
At least on my computer, it returns
(a - b + c - d + e - f) (a - b + c - d + e - f)
(a - b + c - d + e - f)
#1: a - b - ----------------------- + c - d - ----------------------- + e -
f - -----------------------
3 3
3
#1: 0
If you happen to have the time, and are so
inclined, I'd be interested in your thoughts on
whether Poly() might be improved by distinguishing
between
GeneratorsNeeded: Cannot initialize from 'dict' without generators
and
its input equaling 0.
I think the relevant code may be near line 250 in
/usr/lib/python3/dist-packages/sympy/polys/polytools.py
Thanks again for maintaining Debian's cool sympy
package.
Kind regards,
Kingsley
--
Time is the fire in which we all burn.
