Hans, Thankyou for your suggestion of using the \usereferences tag to reference formulas in another document. This is a good solution. However the example below doesn't give usable results because the references to the external formula output by test2.tex does not include the chapter number: test1.tex: ------------- \starttext \chapter{Chapter 1} \placeformula[one] \startformula x = y \stopformula \placeformula[two] \startformula y = z \stopformula \chapter{Chapter 2} \placeformula[three] \startformula z = x \stopformula \stoptext test2.tex: -------------- \usereferences[test1.tex] \starttext \in{formula}[test1.tex::one] \in{formula}[test1.tex::two] \in{formula}[test1.tex::three] \stoptext In the output of test1.tex, the formulas are labeled (1.1), (1.2), and (2.1). In the output of test2.tex the references are labeled 'formula 1', 'formula 2', and 'formula 1' (i.e. the section number is not included). Using the \usereferences tag works if I label formulas 'bytext' rather than by 'bysection' and turn off chapter prefixes in test1.tex using the following at the start of the document: \setupformulae[way=bytext,prefixsegments=None] I would really prefer to maintain numbering by section, but to do this, I need test2.tex to show external references in the same way as test1.tex (by including the section number in front of the equation number). Is there a way to do this at present? If not, labeling formulas 'bytext' will work for now even if it isn't ideal. -Lance Larsen On 6/7/2013 4:01 PM, Lance Larsen wrote:

luigi,

When I started exploring how to map equation references (eq:name) to equation numbers (4.2), I noticed that the 'tuc' file included the equation reference (eq:name), but I was not able to identify anywhere where it indicates the actual equation label specified in the document. Below is an example of the tuc output. 'eq:DVOL_RVI_17' is equation (4.28) in the document:

{ ["metadata"]=142, ["numberdata"]=237, ["prefixdata"]=11, ["references"]={ ["block"]="bodypart", ["internal"]=122, ["realpage"]=47, ["reference"]="eq:DVOL_RVI_17", ["section"]=79, }, }

There is nowhere in the tuc file that contains 4 and 28 near each other. I checked this for other equations as well and concluded that the tuc file does not contain the actual equation numbers that are used.

because there are indirect references to for instance 'numberdata' where this info sits

If I am missing something or you have any other suggestions that might help me to extract this info, I would sure appreciate the help.

see previous mail btw, if you just want to use references in another tex doc, this will do the trick: \usereferences[somedoc] \starttext \in{formula}[somedoc::a] \in{formula}[somedoc::b] \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------