Math & Science ⇒ Draw a box around two aligned equations

[bsb233]

Dear Community,

I am using the amsmath package, and am working in its align environment, viz

Code: Select all

\begin{align*}
H_T^0(G,Z) &= Z/|G|Z \\ \\
H_T^1(G,Z) &=  0.
\end{align*}

I wish to draw a box around both of these equations - i have tried \boxed{...}, which doesn't seem to work for arrays, and looked at the amsmath manual, which makes no mention of this.

Any comments would be welcome,

Barinder

[localghost]

Take a look at the empheq package from the mh bundle.


Best regards and welcome to the board
Thorsten¹

[bsb233]

Hi localghost,

Thanks for your reply. I've got hold of the mh package, but TeXnicCenter requires empheq.sty, and I only have empheq.dtx.

How can I generate the sty file from the dtx file? I'm still rather new to LaTeX.

Many thanks,

Barinder

[Stefan Kottwitz]

Hi Barinder,

have a look into the dtx file, there are instructions at the beginning:

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% Unpacking:
%    (a) If empheq.ins is present:
%           tex empheq.ins
%    (b) Without empheq.ins:
%           tex empheq.dtx
%    (c) If you insist on using LaTeX
%           latex \let\install=y\input{empheq.dtx}
%        (quote the arguments according to the demands of your shell)

Stefan

[localghost]

[...] I've got hold of the mh package, but TeXnicCenter requires empheq.sty, and I only have empheq.dtx.

How can I generate the sty file from the dtx file? I'm still rather new to LaTeX. [...]

It's much easier to install the package (or bundle respectively) with the package manager of your LaTeX distribution. You don't have to generate it manually. If you want to do so, see the post of Stefan.