Re: How to \bf for math?

[Hans Hagen <pragma@wxs.nl>]

Mojca Miklavec wrote:

>Henning Hraban Ramm wrote:
>  
>
>>>What exactly is the ConTeXt alternative to LaTeX's \mathbf (switch to
>>>bold or bold italic math fonts)?
>>>      
>>>
>>I can't help you here, but did you read http://wiki.contextgarden.net/
>>Bold_Math ?
>>    
>>
>
>I tried a couple of tricks, but none of them resulted in bold italic iwona.
>If I use the default font (cm), \bfm does nothing, \bf and \bi work.
>
>I'm also able to get the complete formula typeset in bold iwona, but I
>don't know how to get something like $-{\bf\nabla}\phi={\bi E}$, where
>\phi would be typeset in iwona-light and the rest in iwona-heavy for
>example.
>  
>

taco is the math expert ...

one problem with math is that there are several passes in tex and that 
the fonts that are set last may influence previous switches (just one 
set of families, global within a math environments)

maybe a way out is something \hbox{\yourboldiwona$...$}

another way would be to especially define bf and bi to map onto the 
iwona instances that you want

(for a real mixed functionality we need to patch tex the program)

[ok, i can imagine some kind of dynamic family pool, but for that i need 
some real time and motivation)

Hans