Hi,
I have written a small package for producing right-aligned output
of expressions, as it is sometimes desired in technical calculations
for reason of clatity.
The package resides in the user-contributed-code-section
of the Maxima-homepage:
http://sourceforge.net/apps/phpbb/maxima/viewtopic.php?f=3&t=1433
Perhaps it is useful also for others.
Regards
Wilhelm Haager