On Nov 16, 2005, at 16:15, Hans van der Meer wrote:

I am trying to define bold math myself, but encounter a problem with the typescripts.

As always, when desperately posting the problem, something suggests itself that brings a solution of some sort.

I looked into the definition of \bfmath, traced its execution and found out that afterall my own [bfmath] typescript was indeed used! But in order to get the same behaviour between normal math (variables set in MathItalic) and bold math I had to change the definition of \bfmath:

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

That is, the last font switch made to \mi instead of \mf as is done font-ini.tex.

Then I see the same behaviour in math and bfmath, that is MathItalic with $etc$ and MathItalicBold with $\bfmath etc$.

My question to Hans Hagen: Should this change be followed in font-ini.tex?

Personally, I feel confused by having math and bold math behaving differently.

Hans van der Meer

Further probing into this matter (previous mail, see below) shows that the typescript delineated by ****'s is NOT USED AT ALL!
(Calling \setupformulas[method=bold] makes no difference).
It therefore does not seem a problem in the math family assignments in font-bfm.tex, as I first suspected.

Is there some special invocation needed for hooking up a user defined font set into $\bfmath ...$?
If have looked into font-bfm.tex and font-ini.tex but could not figure it out.
Clearly I am misunderstanding the inner workings here, but I have no clue in which direction to look.

I am using the follwing (extracted) typescript lines for math in the lucida fonts:

\starttypescript [luc]
   \definetypeface [luc][mm][math][lucidayy][default][encoding=texnansi]
\definetypeface [luc][mm][bfmath][lucidayy][default][encoding=texnansi]
\stoptypescript

\starttypescript [math] [lucidayy] [default]
\definebodyfont [default] [mm]
[mr=MathRoman mo 1, mi=MathItalic mo 1, ....]
\stoptypescript

******************************************************************************
\starttypescript [bfmath] [lucidayy] [default]
\definebodyfont [default] [mm]
[mrbf=MathRomanBold mo 1, mibf=MathItalicBold mo 1, ....]
\stoptypescript
******************************************************************************

\starttypescript [math] [lucidayy] [name]
\definefontsynonym [MathRoman]    [LucidaBright]
\definefontsynonym [MathItalic] [LucidaNewMath-AltItalic]
\stoptypescript

\starttypescript [math] [lucidayy] [texnansi,ec,8r]
\definefontsynonym [LucidaBright] [hlhr8y]   [encoding=texnansi]
\definefontsynonym [LucidaNewMath-AltItalic]    [hlcrima]
\stoptypescript

\starttypescript [bfmath] [lucidayy] [name]
\definefontsynonym [MathRomanBold]    [LucidaBright-Demi]
\definefontsynonym [MathItalicBold] [LucidaNewMath-AltDemiItalic]
\stoptypescript

\starttypescript [bfmath] [lucidayy] [texnansi,ec,8r]
\definefontsynonym [LucidaBright-Demi]    [hlhb8y]   [encoding=texnansi]
\definefontsynonym [LucidaNewMath-AltDemiItalic] [hlcdima]
\stoptypescript

Typesetting:
\starttext
\usetypescript[luc][texnansi]\setupbodyfont[luc,10pt]\lucidatrue
{$\sqrt{a^2 + b^2} = c + \mf\sin{}x\quad {\ma NZRC}$}\crlf
\stoptext
Gives me for the variables neatly LucidaNewMath-AltItalic.
*** Changing the fonts in the above typescript does work ***

But typesetting
\starttext
\usetypescript[luc][texnansi]\setupbodyfont[luc,10pt]\lucidatrue
{$\bfmath\sqrt{a^2 + b^2} = c + \mf\sin{}x\quad {\ma NZRC}$}\crlf
\stoptext
Gives me LucidaBright-Demi instead of LucidaNewMath-AltDemiItalic.
Everything else however (even the blackletters from ma) are in the correct bold math font.
The font must be present, because substituting MathItalicBold for MathItalic in the [math] script proves that.
*** But not coming from my typescript I conclude from several experiments ***

Hans van der Meer
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