Re: [NTG-context] A few questions about aligned maths

14 Mar 2008


      On Fri, 14 Mar 2008, Wolfgang Schuster wrote:
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On Thu, 13 Mar 2008 19:48:55 -0400 (EDT)
Aditya Mahajan  wrote:
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On Thu, 13 Mar 2008, Morgan Brassel wrote:
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Concerning multline, I only read the specification given in amsldoc.pdf:
"3.3 Split equations without alignment". Multline does not support alignment,
so you can't put '&' inside it, only '\\'. All it does is cut the equation
into several lines: the first is left aligned, the last is right aligned, and
all the intermediate are centered. I don't if this is sufficient as an
explanation. Please let me know if I can help or test. And thank you for your
time!
So, will this user interface be enough:
\startformula \startmultline
   \NC line 1 \FR
   \NC line 2 \MR
   \NC line 3 \LR
\stopmultline \stopformula
I would change myself the name for the environment from multline to
multiline, we don't have to rely on the short command names as old TeX
packages did for many macros.
Yes, of course. I never really understood the stange naming conventions of 
amstex.
...
...
Lines with \FR are flush left, lines with \MR are centered, and lines with
\LR are right flushed. (First row, middle row, last row; as in tables).
multline also has \pushleft and \pushright with go against the ConTeXt way
of things.
It is also possible to just have \NR at each row, and let ConTeXt figure
out the correct flushing. That will involve a two-pass algorithm, and I
will give that a try.
I think you should use NR at the end of a line and not different
commands for the first, the last and all other lines. You could change
the alignment of each line with \NC[align=...], this will fit to the
normal commands for tables.
This will also make it easier to implement ;)


Aditya