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 ___________________________________________________________________________________