Hicham Mouline schrieb:
I have created a system of equations (the cases environment) with 10 columns
and 9 rows.
Many of the cells are empty.
After saving the .lyx, and on clicking on the dvi or pdf icon, I get this
error repeated 27 times:
Extra alignment tab has been changed to \cr
Then you have done something wrong when creating the formula. When you send
a _small_ LyX example file I can have a look
Please see attached .lyx file.
You used more than two columns. This is not allowed for the \cases environment. For your application
use the method I described in section 18.6 of the Math manual that you find in LyX's Help menu.
There is already a bug report that LyX should not allow to insert more than two
columns for \cases:
http://bugzilla.lyx.org/show_bug.cgi?id=4141
regards Uwe
