Re: bold math

[Hans Hagen <pragma@wxs.nl>]

At 10:48 21/11/2003, you wrote:
>Ahoj,
>
>On November 11 I asked the list how I could generate bold greek math 
>symbols (I have the lucida family installed).
>Until now I didn't get a response, so maybe I should be more specific.
>
>Let me put it this way:
>On page 12 of the `Fonts in ConTeXt' manual I find the footnote:
>`Bold math is already prepared in the core modules, so normally one can do 
>with less code.'
>
>Can anybody tell me what code I have to add and where?
>I would like to get the following line
>$\theta = {\bfmath \alpha' x}$
>with \theta in normal math and \alpha and x in math boldface?

First of all, the definition of \bfmath is broken (i probably never really 
tested it)

\def\bfmath{\bf\mf\synchronizesymb\mf}

i'll come back to more advanced mixed normal/bold switching later (playing 
a bit with that now);

a main switch to bold math is best done with a new typeface:

(i just found out that there's a typo in type-syn.tex and type-enc.tex: 
LucidaNewMath-Demibold -> LucidaNewMath-DemiBold

\definetypeface [mainface] [rm] [serif]
   [lucida] [default] [encoding=texnansi]
\definetypeface [mainface] [tt] [mono]
   [lucida] [default] [encoding=texnansi]
\definetypeface [mainface] [ss] [sans]
   [lucida] [default] [encoding=texnansi]
\definetypeface [mainface] [mm] [math]
   [lucida] [default] [encoding=texnansi]

\definetypeface [boldmath] [rm] [serif]
   [lucida] [default] [encoding=texnansi]
\definetypeface [boldmath] [tt] [mono]
   [lucida] [default] [encoding=texnansi]
\definetypeface [boldmath] [ss] [sans]
   [lucida] [default] [encoding=texnansi]
\definetypeface [boldmath] [mm] [boldmath]
   [lucida] [default] [encoding=texnansi]

\switchtobodyfont[mainface] \usemathcollection[lbr]  \showmathtoken{Gamma}
\switchtobodyfont[boldmath] \usemathcollection[lbr]  \showmathtoken{Gamma}

\startlines
$x=10 \Gamma \Delta \alpha \delta \zeta$

{$x=10 \Gamma \Delta \alpha \delta \zeta$}
{$x=10 \Gamma \Delta \alpha \delta \zeta$}

$\mainface  x=10 \Gamma \Delta \alpha \delta \zeta$
$\boldmath  x=10 \Gamma \Delta \alpha \delta \zeta$

\stoplines

\startformula
   x=12=\fontbody  \Gamma \Delta \alpha \delta \zeta
\stopformula

\startformula[mainface]
    x=12=\fontbody  \Gamma \Delta \alpha \delta \zeta
\stopformula

\startformula[boldmath]
   x=12=\fontbody  \Gamma \Delta \alpha \delta \zeta
\stopformula

\startformula[boldmath,8pt]
   x=8=\fontbody  \Gamma \Delta \alpha \delta \zeta
\stopformula

\startformula[boldmath,12pt,small]
   x=12s=\fontbody  \Gamma \Delta \alpha \delta \zeta
\stopformula

\startformula[boldmath,small]
   x=s=\fontbody  \Gamma \Delta \alpha \delta \zeta
\stopformula

\startformula[boldmath,10pt]
   x=10=\fontbody  \Gamma \Delta \alpha \delta \zeta
\stopformula

\startformula[boldmath,11pt,small]
   x=11s=\fontbody  \Gamma \Delta \alpha \delta \zeta
\stopformula

\startformula[boldmath,9pt]
   x=9=\fontbody \Gamma \Delta \alpha \delta \zeta
\stopformula

\formula[boldmath]{1=2x}


Hans