[texhax] fbox in align environment
Philip G. Ratcliffe
philip.ratcliffe at uninsubria.it
Tue Jun 16 10:10:30 CEST 2009
> \usepackage{amsmath}
>
> \begin{equation*}
> \setlength{\arraycolsep}{0pt}
> \renewcommand{\arraystretch}{1.25}
> \begin{array}{r@{\;}c@{\;}r@{\;}}
> x+y+2 & = & 1\\
> 2x+3y-4z & = & 2\\
> \hline
> \multicolumn{1}{|r@{\;}}{3x-2y+z}
> & \multicolumn{1}{c@{\;}}{=}
> & \multicolumn{1}{r@{\;}|}{3}\\
> \hline
> \end{array}
> \end{equation*}
A couple of comments:
1. the alignment of the third column ought to be with "l" (not "r");
2. if, e.g., the r.h.s. of one of the first two equations is longer (say,
1+p) then the output looks a little odd since the box is always as wide as
the table and not a given entry (the same is also true w.r.t. the l.h.s.).
Cheers, Phil
More information about the texhax
mailing list