That might be an issue with the current cse algorithm.
I have recently applied to SymPy for a summer project to improve it : 
https://docs.google.com/document/d/18pLah093CgClXM9i1LTPfkBjBvFDGhqQrR5TkkG8F2E/edit#
Such an issue should not crop up with this different algorithm.

On Tuesday, April 4, 2017 at 12:59:22 PM UTC+5:30, Pfaeff wrote:
>
> The cse create some expressions that are just aliases of existing symbols. 
> How can I prevent that?
>
> e.g. (x5, x1), (x7, -x5)
>

-- 
You received this message because you are subscribed to the Google Groups 
"sympy" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/sympy.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/sympy/4c125dfe-c01f-4224-904e-05fedf56314b%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to