Hello,

it seems this is a frequent thesis - in the mailing archive, stackoverflow...

Anyway, I'm not able to find a valid way (MWE) how to number subformulas (with option to 
create a reference name, like 'eq:1a' and 'eq:1b', and to be able to refer to them, like 
"\ineq[eq:1a] and \ineq[eq:1b]"), so to get something like:

"
Some text
        a + b = c       (1a)
and later
        d + e = f       (1b)
so nothing surprising in [1a] and [1b].
"

Moreover, on http://wiki.contextgarden.net/Math there is a red "Warning!":

"
If you consider using ConTeXt for a paper with a proper formula numbering 
please wait until it is implemented in mkiv. At the moment only a very limited 
formula numbering is possilbe:
 number formula(s) with a plain number
 number formula(s) with a subnumber

Not possible is at the moment:
 Table of formulas
 Named subformulas
 Mixure of formulas and subformulas in one block
 Reference on a (sub-)formula without having it listed in the Table of formulas

For more details and actual state see mailing list and Summary of formula 
numbering problem.
"

I don't know which date this warning comes from, if it is outdated or still 
valid...

So, finally, what is the PROPER way (if it really exists) in ConTeXt how to 
typeset subformulas?

(I'm typesetting a large article on physics which contains many math 
(sub-)formulas, so knowledge of a working tool for Ctx would be nice...)

Best regards,

Lukas


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