For a publication I need to typeset a lot of math formulas. To make them
as comprehensible as possible, I need a few specialties, and would
appreciate any suggestions you can provide:

1) Some of the formulas should be numbered, some not; and at the same time
I would like to align several of them.

For alignment I seem to be able to use \eqalign (or \startalign ...
\stopalign from the t-amsl.tex sent around here lately). But if I place a
\placeformula in front of this, the whole aligned block only gets one
number; I would need a number for every line (or even better: a possibility
to state, which lines should be numbered, and which not).

By looking into core-mat.tex I found the commands \formulanumber and
\subformulanumber which I can add after each line, if I want it to be
numbered. Unfortunately they only set numbers, if the whole aligned block
also is numbered (by using \placeformula), and they furthermore do not put
the number beside the right margin, as is done by \placeformula, but
directly where the \formulanumber appears.

How can I enable the numbers even when not using \placeformula (or when
using \placeformula[-]), and how can it put the numbers next to the right

2) What are the keywords "alternative" and "indentnext" in \setupformulae
meant for? Is there any documentation available concerning math formulae,
besides "ConTeXt, the manual"?

3) I'd like to be able to set more than one line below large math operators,
e.g. something like \sum_{m: \\ 1 \leq m \leq M}. Unfortunately this does
not work as expected (it seems to conflict with the \startalign block). Is
there another possibility?

4) Using the alignment features (\eqalign or \startalign, \stopalign) I
often have the problem, that the (quite space consuming) formulas all appear
on the next page, separated from its introductory text. I would like to have
either also the introductory text put onto the next page (but neither
\page[no] between text and formulas, nor \page[preference] before the
introductory text work), or alternatively, to be able to (automatically)
break the formulas inside the alignment block (whether alignment is kept
up or not between pages does not matter for me). Is there a solution for
either way?

I am using:
This is pdfeTeX, Version 3.14159-1.00a-pretest-20011114-ojmw-2.1 (Web2C 7.3.7)
ConTeXt  ver: 2003.2.11  fmt: 2003.4.4  int: english  mes: english

Holger F. Schoener      TU Berlin; Dept. IV: EE and Computer Science
[EMAIL PROTECTED]       http://www.cs.tu-berlin.de/~hfsch/
Rooms FR2525            Tel: +49-30-314-73115, Fax: -73121
Office FR 2-1           Franklinstr. 28/29, D-10587 Berlin, Germany

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