Hello, from the wiki (http://wiki.contextgarden.net/Math/basic#List_of_All_Math_macros) I tryed the following snippet: \usemodule[fnt-25] \showmathfontcharacters But context complains that there is no fnt-25 module, so let’s grep showmathfontcharacters in conteXt directory. I found that it is defined into the mat-10 module. So new snippet: \usemodule[mat-10] \showmathfontcharacters End new error: ConTeXt ver: 2012.09.11 20:36 MKIV fmt: 2012.9.12 int: english/english system > cont-new.mkiv loaded (/opt/context-minimals/texmf-context/tex/context/base/cont-new.mkiv system > beware: some patches loaded from cont-new.mkiv ) fonts > latin modern fonts are not preloaded languages > language en is active (mathsymbols.tex resolvers > modules > loaded: 'mat-10' (/opt/context-minimals/texmf-context/tex/context/base/s-mat-10.mkiv)) fonts > defining > font with asked name 'unknown' is not found using lookup 'file' fonts > defining > unknown font unknown, loading aborted fonts > defining > unable to define unknown as [thedefinedfont--0] ! LuaTeX error <main ctx instance>:22: attempt to index local 'resources' (a nil value) stack traceback: <main ctx instance>:22: in function 'showmathfont' <main ctx instance>:1: in main chunk. system > tex > error on line 5 in file /opt/context-minimals/texmf-context/tex/context/base/cont-yes.mkiv: LuaTeX error ... 1 %D \module 2 %D [ file=cont-yes, 3 %D version=2012.06.01, 4 %D title=\CONTEXT\ Miscellaneous Macros, 5 >> %D subtitle=Startup Stub, 6 %D author=Hans Hagen, 7 %D date=\currentdate, 8 %D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}] 9 %C 10 %C This module is part of the \CONTEXT\ macro||package and is 11 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for 12 %C details. 13 14 % At some point I will reconsider the \starttext .. \stoptext 15 % wraping as we can assume proper styling. It's a left-over from <argument> ...cument.showmathfont(font.current())} \firstoftwoarguments #1#2->#1 \doshowmathfontcharacters ...wmathfontcharacters } \endgroup <to be read again> \finishjob l.5 \finishjob } context.finishjob() ... l.86 \stopluacode I do not realy care about this list, I was just currious and it did not work so I point it out.