Re: [ConTeXt] math eq align

[David Arnold <darnold@northcoast.com>]

Tobias,

Here is a final version. TeX's \halign is an unusually flexible construct,
but it's tough to become proficient in its use (I'm not. I much prefer the
macros provided by AMSTeX). Before you start thinking I am a TeX guru (I'm
not), I need to say that I stole the following idea from Donald Knuth's
"The TeXbook", page 334, example 22.9. The TeXbook ranks as one of the best
books that I own.

$$
\openup1\jot \tabskip=0pt plus1fil
\halign to\displaywidth{\tabskip=0pt
 $\hfil#$&${}#\hfil$\tabskip=0pt plus1fil
 & \tabskip=0pt$\hfil#$ & ${}#\hfil$
 \tabskip=0pt plus1fil &\llap{#}\tabskip=0pt\cr
\omega_1 & =\omega_0=\omega_{\rm s}
 &   Z_1&=\pmatrix{1\cr1\cr}={\bf Z}_{\rm s}
 & (a) \cr
\omega_2 & =-\omega_0=-\omega_{\rm s}
 &   Z_1&=\pmatrix{1\cr1\cr}={\bf Z}_{\rm s}
 & (b) \cr
\omega_3 & =\omega_0\sqrt{1+2f}=\omega_{\rm a}
 &   Z_1&=\pmatrix{1\cr-1\cr}={\bf Z}_{\rm a}
 & (c) \cr
\omega_4 & =-\omega_0\sqrt{1+2f}=-\omega_{\rm a}
 &   Z_1&=\pmatrix{1\cr-1\cr}={\bf Z}_{\rm a}
 & (d) \cr}
$$

David Arnold
College of the Redwoods
Mathematics Department
7351 Tompkins Hill Road
Eureka, CA 95501
(707) 476-4222

My Home Page
http://online.redwoods.cc.ca.us/instruct/darnold/index.htm

Ordinary Differential Equations Using Matlab
http://www.prenhall.com/books/esm_0130113816.html