# Eqnarray vs align environments [duplicate]

I keep reading that \begin{align} is preferred to \begin{eqnarray}.

Unfortunately, I can't get align to justify rcl. I'll change between align and eqnarray, and the rightmost column is right justified. So, align for me looks like rcr. Does anyone know what I could be doing? I want the old rcl justification.

Thanks, Aaron

• Note that align uses only 1 alignment character &= to obtain it's regular rl alignment. eqnarray uses 2 alignment characters & = &... how are you using it? – Werner Feb 6 '14 at 19:30
• Good descriptions in this regard can be found in »Avoid eqnarray!« and the »Math mode« document. – Thorsten Donig Feb 6 '14 at 19:39
• It would help if you provided a minimum working example. But the tabstackengine package (see tex.stackexchange.com/questions/155579/…) can provide tabular style alignments to an array. – Steven B. Segletes Feb 6 '14 at 19:42
• a minimal working example (MWE) would be great- btw, welcome to the site! – cmhughes Feb 6 '14 at 22:06
• Thanks! I didn't expect that change. The single & is what I need. – Aaron Goldsmith Feb 7 '14 at 22:47