Dear List, 

I would like to know, what i can do, to geht all Math macros with MkII : \showmathcharacters in my Editor: WinEdt. I tried to compile it, but there is a mistake. I tried with \starttext and \stoptext, didn't work. 

Command Line:   context.exe --synctex=-1 "Math 2.tex"

Startup Folder: C:\Users\Administrator

resolvers       | formats | executing runner 'run luatex format': C:/texlive/2020/bin/win32/luatex --jobname="Math 2" --fmt=C:/texlive/2020/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.fmt --lua=C:/texlive/2020/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.lui cont-yes.mkiv --c:currentrun=1 --c:fulljobname="./Math 2.tex" --c:input="./Math 2.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:synctex="-1" --c:texmfbinpath="C:/texlive/2020/bin/win32"

This is LuaTeX, Version 1.12.0 (TeX Live 2020/W32TeX) 

 system commands enabled.

open source     > level 1, order 1, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv'

system          > 

system          > ConTeXt  ver: 2020.03.10 14:44 MKIV beta  fmt: 2021.1.18  int: english/english

system          > 

system          > 'cont-new.mkiv' loaded

open source     > level 2, order 2, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-new.mkiv'

system          > beware: some patches loaded from cont-new.mkiv

close source    > level 2, order 2, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-new.mkiv'

system          > files > jobname 'Math 2', input './Math 2', result 'Math 2'

fonts           > latin modern fonts are not preloaded

languages       > language 'en' is active

system          > synctex functionality is enabled, expect 5-10 pct runtime overhead!

open source     > level 2, order 3, name 'C:/Users/Administrator/Math 2.tex'

tex error       > tex error on line 1 in file C:/Users/Administrator/Math 2.tex: ! Undefined control sequence

l.1 \showmathcharacters

                     

1 >>  \showmathcharacters 

mtx-context     | fatal error: return code: 1

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 ConTeXt Compilation Report (Pages: 0)

 Errors: 1   Warnings: 0   Bad Boxes: 0

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