On 09 Oct 2016, at 15:51, Hans Hagen <pragma@wxs.nl<mailto:pragma@wxs.nl>> wrote:

On 10/9/2016 1:07 PM, Meer, Hans van der wrote:
Not more than 3 years ago the addition of \usemodule[math-10] solved the Undefined control sequence error for \showmathfontcharacters.
But at least in ConTeXt  ver: 2016.07.23 13:35 this problem cropped up again.
Where is \showmathfontcharacters defined nowadays?

>mtxrun --script grep showmathfontcharacters *.mkiv

./s-math-characters.mkiv    125: \unexpanded\def\showmathfontcharacters
./s-math-characters.mkiv    190:     \showmathfontcharacters
./s-math-repertoire.mkiv    447: {\showmathfontcharacters[alternative=,option=,check=yes,#1]
./s-math-repertoire.mkiv    448: \showmathfontcharacters[alternative=,option=,#1]}


Then why do I get an error with:
\starttext
\showmathfontcharacters[alternative=,option=,lmodern]}
\stoptext

system          > ConTeXt  ver: 2016.10.08 00:11 MKIV beta  fmt: 2016.10.10  int: english/english
tex error       > tex error on line 4 in file /Users/hansm/Documents/TeX/texmf/texnotes/tester.tex: ! Undefined control sequence

l.4 \showmathfontcharacters
                         [alternative=,option=,lmodern]}

Hans van der Meer