Comment #14 on issue 2021 by [email protected]: cross product always returns
(1,3)-Matrix
http://code.google.com/p/sympy/issues/detail?id=2021
row x row = row and col x col = col will still allow the various properties
to be asserted (like a x b = -b x a and a x (b x c) + b x (c x a) + c x (a
x b)). But if we arbitrarily allow row x col to be row or col then we run
into problems. It is not difficult to simply append a .T to the end of one
of the vectors to make sure they are the same shape.
Would anyone complain (with just cause) if we dropped the current row x col
and col x row behavior and raise an error instead?
Alternatively we just say this is a WontFix: any combination works at
present and if you want something other than a row, append .T to your
result.
--
You received this message because this project is configured to send all
issue notifications to this address.
You may adjust your notification preferences at:
https://code.google.com/hosting/settings
--
You received this message because you are subscribed to the Google Groups
"sympy-issues" 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 http://groups.google.com/group/sympy-issues.
For more options, visit https://groups.google.com/groups/opt_out.
