[NTG-context] intertext for aligned equations

Taco Hoekwater taco at elvenkind.com
Mon Mar 27 11:02:38 CEST 2006



Hi,

Aditya Mahajan wrote:

> This seems to be working fine. However, \intertext defined in 
> amsmath.sty seems to be doing  a lot more (I just can't figure out 
> what it is doing?) Can someone suggest how to make the above command 
> more robust on the lines of \intertext?

It inserts a post/pre-display skip&penalty pair around the intertext,
then creates a \vbox for use a paragraph. The result is (almost) as if
it the text was part of the 'normal' text flow between two displays.

I cannot tell you if this would work exactly the same as expected in
ConTeXt (needs further testing), but a context-like solution would
look like this:

\def\startintertext#1\stopintertext{%
   \noalign{\dointertext{#1}}\NR}

\unexpanded\def\dointertext#1%
    {\penalty\postdisplaypenalty
     \afterdisplayspace  % the matching \before... is not needed
     \vbox{\forgetall \noindent #1\par}%
     \penalty\postdisplaypenalty }

Cheers, taco


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