[texhax] Typesetting row operations in matrices

[Aditya Mahajan]

Quoting Matthew Leingang <leingang at math.harvard.edu>:
>
> At which point I start thinking, "there's gotta be a better way."   Does
> anybody know of an existing solution?  I'd be satisfied with my hack if I
> could get my two matrices to line up.  Should I be using a different
> package?

See if http://ctan.org/tex-archive/macros/latex/contrib/gauss/ fits 
your requirements.

Aditya