On Wed, 5 Apr 2006, WN wrote:
> One thing I want to do with a set of subformula's is
> to reference the main formula but still subnumbering the equations
> like
Try this. Warning: I do not know everything that is happening here.
There may be some unexpected side effects.
\unprotect
\def\placesubformulawithnumber{%
\dodoubleempty\doplacesubformulawithnumber}
\def\doplacesubformulawithnumber[#1][#2]%#2 gobbles spaces
{\iffirstargument
\incrementnumber[\v!formula]
\makesectionnumber[\v!formula]
\rawreference{\s!for}{#1}{\composedsectionnumber}
\else
\incrementnumber[\v!formula]
\fi\placesubformula}
\protect
> \starttext
%% > \incrementnumber[formula]
%% > \placesubformula
\placesubformulawithnumber[eqn1] %I need to think of a smaller name
> \startformula
> \startalign
> \NC div \vec{E} \NC = \epsilon_{0}^{-1} \rho \NR[eqn1:A][a]
> \NC rot \vec{E} \NC = 0 \NR
> \NC div \vec{B} \NC = 0 \NR[eqn1:B][b]
> \NC rot \vec{B} \NC = \mu_{0} \vec{j} \NR
> \stopalign
> \stopformula
> See *\in[eqn1] *for the static Maxwell equations, where we are going to
> examine \in[eqn1:A] a bit further ....
> \stoptext
>
Also, note that div and rot should be in text font. You should
probably do
\startmathcollection[default]
\definemathcommand [div] [nolop] {\mfunction{div}}
\definemathcommand [rot] [nolop] {\mfunction{rot}}
\stopmathcollection
and use \div \rot etc.
HTH,
Aditya
--
Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008
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