> Hans Hagen <mailto:pragma@wxs.nl>
> 6. Juni 2016 um 22:03
>
>
> There is support for hvmath (a virtual unicode font is constructed 
> then) but you need to get those files somewhere.
>
> An alternative is to roll out your own virtual math font (take a look 
> at the *.lfg files that have math in their name).
>
> On the agenda for the tex gyre project is a serif math font (lato or 
> so) but that will take a while (also awaits funding).
The font fallback mechanism is another alternative but one shouldn’t 
expect too much because a real sans serif math is necessary to get 
larger operators.

\definefontfamily     [mainface] [ss] [Latin Modern Sans]

\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:digitsnormal]
\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:digitsbold]

\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:uppercasenormal]
\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:uppercaseitalic]
\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:uppercasebold]
\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:uppercasebolditalic]

\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:lowercasenormal]
\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:lowercaseitalic]
\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:lowercasebold]
\definefallbackfamily [mainface] [mm] [Latin Modern Sans] 
[preset=math:lowercasebolditalic]

\definefontfamily     [mainface] [mm] [Latin Modern Math]

\setupbodyfont[mainface]

\starttext

     abcdefg ABCDEFG 123456

     \startformula
         {\tf abcdefg\,ABCDEFG} \quad abcdefg\,ABCDEFG \quad 123456 
\quad {\bf 123456}
     \stopformula

\stoptext

Wolfgang