Hello, some more observation:
It seems (sub)numbering (sub)formulas can be achieved enclosing expressions
into \start/\stop-align.
I wrote a code based on a test suite file:
...\test\doc\context\tests\mkiv\math\formulas-001.tex
----
\starttext
\startsubformulas[eq:sub1]
\placeformula
\startformula
\startalign
\NC a_1 x + b_1 y \NC = c_1 \NR[eq:11]
\NC a_2 x + b_2 y \NC = c_2 \NR[eq:12]
\stopalign
\stopformula
\stopsubformulas
\in{eq:11}[eq:11]
\in{eq:12}[eq:12]
\placeformula
\startformula
\startsubformulas[eq:sub2]
\startalign
\NC a_1 x + b_1 y \NC = c_1 \NR[eq:21]
\NC a_2 x + b_2 y \NC = c_2 \NR[eq:22]
\stopalign
\stopsubformulas
\stopformula
\input knuth
\placeformula
\startformula
\startsubformulas[eq:sub2]
\startalign
\NC a_1 x + b_1 y \NC = c_1 \NR[eq:31]
\NC a_2 x + b_2 y \NC = c_2 \NR[eq:32]
\stopalign
\stopsubformulas
\stopformula
\in{eq:31}[eq:31]
\in{eq:32}[eq:32]
\stoptext
----
Problems are:
1. I am not able to make numbering of eq:31 and eq:32 continue on eq:22, so to
have equations numbered:
1a, 1b; 2a, 2b; 2c, 2d
instead of:
1a, 1b; 2a, 2b; 3a, 3b
(Some text - here: knuth - between 2b and 3a/2c is required.)
(I played with commenting some combinations of lines but with no success.)
So - is there a way how to continue numbering subformulas (after some inserted
text) - something like itemizing has \startitemize[continue]?
2. How to affect the numbering style to be "1a" instead "1.a"?
3. @Hans: The test suite file:
...\test\doc\context\tests\mkiv\math\subformulas-001.tex
compiles, but gives "no-reference" "??".
(
The example on wiki:
http://wiki.contextgarden.net/Math/Display#Automatic_Sub-Formula_Numbering
seems to be very ancient as it GIVES the desired result.
)
Lukas
On Mon, 03 Aug 2015 12:20:44 +0200, Procházka Lukáš Ing. - Pontex s. r. o.
<l...@pontex.cz> wrote:
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
-- Ing. Lukáš Procházka | mailto:l...@pontex.cz Pontex s. r. o. | mailto:pon...@pontex.cz | http://www.pontex.cz Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 Fax: +420 244 461 038
subformulas-001.log
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subformulas-001.pdf
Description: Adobe PDF document
SubForm2.mkiv
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