[NTG-context] intertext for aligned equations

Aditya Mahajan adityam at umich.edu
Mon Mar 27 09:23:34 CEST 2006

  I was looking at trying to implement something similar to 
amsmath's intertext command. I can get the basic functionality working 
as follows.


\startformula \startalign
   \NC A_1 \NC= \left| \int_0^1 (x^2 - 3x)\, dx \right|
     + \left| \int_1^2 (x^2 -5x + 6)\, dx \right| \NR
     Take limis of both integrals %\input tufte
   \NC \NC = \left| \frac{x^3}{3} - \frac{3}{2} x^2 \right|_0^1
     + \left| \frac {x ^3}{3} - 7 \frac{5}{2} x^2 + 6x \right|_1^2 \NR
     \NC \NC = \left| - \frac{7}{6} \right| + \left|\frac{14}{3} -
     \frac{23}{6}\right| = \frac{7}{6} + \frac{5}{6} = 2 \NR
\stopalign \stopformula

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?

%----- from amsmath.sty -------------
         \else \parshape\@ne \@totalleftmargin \linewidth


Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008

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