[NTG-context] Changing font for math function

[Hans Hagen]

On 5/9/2015 1:56 PM, Wolfgang Schuster wrote:
>
>> Am 09.05.2015 um 13:46 schrieb Hans Hagen <pragma at wxs.nl
>> <mailto:pragma at wxs.nl>>:
>>
>> On 5/9/2015 2:03 AM, Aditya Mahajan wrote:
>>> Hi,
>>>
>>> There is a question on TeX.SX asking how to change the font of \sin,
>>> \cos, etc.
>>>
>>> http://tex.stackexchange.com/q/243893/323
>>>
>>> I looked at the code, and there does not appear to be an easy solution.
>>> The \mathfunctionlabeltext command has \mathupright hard coded.
>>>
>>> One option is to keep this configurable using \setupmathematics, perhaps
>>> mfunction=(normal|italic|sans).
>>>
>>> In any case, I think that the current implementation is a bug. The
>>> default font for mathfunctionlabeltext should be typeset in the bodyfont.
>>
>> this is evil (as it's unpredictable, so no support for side effects):
>>
>> % \prependtoks \rm \to \everymathematics
>
> Is there no better way to use upright letters in math except the line above?

for functions one can now use:

\setupmathematics
   [functionstyle=\rm]

and for other changes the normal alphabet changing commands. For text 
one has the text commands. Keep in mind that in the regular math stream 
we don't think of fonts but of alphabets

Hans

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