linking to equations with leqalignno?

linking to equations with leqalignno?

[Pau]

Hello,

I am a bit lost. I am using this format for an equation:

-----------------------------------------------------------------
\placeformula[nohair]
\startformula
\leqalignno{
 - M^{}_{\bullet}a^{2}_{\bullet} = & M^{}_{2} = -
\frac{J^{2}_{1}}{M^{}_{0}} \,, \cr
 - M^{}_{\bullet}a^{3}_{\bullet} = & J^{}_{3} =
\frac{M^{}_{2}J^{}_{1}}{M^{}_{0}}\,. \cr
           }
\stopformula
-----------------------------------------------------------------

but then,using  \in[nohair] to link to the equation in the text of the
document does not work.

I get a [??]

I think this is related to leqalignno, because \in[] works fine without it.

What should I do in this case?

thanks,

Pau
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: linking to equations with leqalignno?

[Otared Kavian]

Hi Pau,

You should not use \leqaligno, but rather setup the location of the formulas' numbers to the left and then use \eqalign: the following works fine:

%%-------------
\setupformulas[location=left]

\define[1]\eqref{(\in[#1])} % this definition is optional…

\starttext

\placeformula[nohair]
\startformula
\eqalign{
- M^{}_{\bullet}a^{2}_{\bullet} = & M^{}_{2} = -
\frac{J^{2}_{1}}{M^{}_{0}} \,, \cr
- M^{}_{\bullet}a^{3}_{\bullet} = & J^{}_{3} =
\frac{M^{}_{2}J^{}_{1}}{M^{}_{0}}\,. \cr
          }
\stopformula
As one may see from equation (\in[nohair]), we have\dots

It is more handy to use \type{\eqref}: as one sees in equation \eqref{nohair}, we have\dots
\stoptext
%%-------------
Consider also using the ConTeXt math alignment commands for which Aditya has written a very nice My Way:
http://dl.contextgarden.net/myway/mathalign.pdf

See also:
http://dl.contextgarden.net/myway/context-latex-math.pdf
Best regards: OK

On 4 sept. 2010, at 23:06, Pau wrote:

> Hello,
> 
> I am a bit lost. I am using this format for an equation:
> 
> -----------------------------------------------------------------
> \placeformula[nohair]
> \startformula
> \leqalignno{
> - M^{}_{\bullet}a^{2}_{\bullet} = & M^{}_{2} = -
> \frac{J^{2}_{1}}{M^{}_{0}} \,, \cr
> - M^{}_{\bullet}a^{3}_{\bullet} = & J^{}_{3} =
> \frac{M^{}_{2}J^{}_{1}}{M^{}_{0}}\,. \cr
>           }
> \stopformula
> -----------------------------------------------------------------
> 
> but then,using  \in[nohair] to link to the equation in the text of the
> document does not work.
> 
> I get a [??]
> 
> I think this is related to leqalignno, because \in[] works fine without it.
> 
> What should I do in this case?
> 
> thanks,
> 
> Pau


___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: linking to equations with leqalignno?

[Yury G. Kudryashov]

Otared Kavian wrote:

> Hi Pau,
> 
> \define[1]\eqref{(\in[#1])} % this definition is optional…
\definereferenceformat[ineq][left=(,right=)]
> It is more handy to use \type{\eqref}: as one sees in equation
\ineq[nohair]

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________