Re: How to \bf for math?

[Adam Lindsay <atl@comp.lancs.ac.uk>]

Mojca Miklavec wrote:
> Taco, thanks for the answer. I managed to change the whole math family
> into bold, but I can't get the following example working:
> 
> \switchtobodyfont[iwona-light,ss]
> $$normal {\bf bold}{\bfm bold}{\bfmath bold}$$
> 
> \bf and \bfmath result in cm fonts, \bfm has no influence, no matter
> what I tried to do. I grep-ed for bfmath and boldmath and tried to
> replace them, but no success at all. See the attached file for my
> attempts.

Okay, thanks to some off-list prodding, I took a look. Mojca, you 
weren't too far off. Simply following the recipe for lucida got me most 
of the way there, but the normal letters didn't get inflected (bold-ed).
When I explicitly defined the alphabet, then the rest of the problems I 
saw got solved.

Try this out with a lot more test cases, and report back. If it's okay, 
then it should be easy to formalise it into a robust, more complete set 
of typescripts...

\startmathcollection[default] %eventual patch for math-tex?
\definemathcharacter [a]   [nothing] [mi] ["61]
\definemathcharacter [b]   [nothing] [mi] ["62]
\definemathcharacter [c]   [nothing] [mi] ["63]
\definemathcharacter [d]   [nothing] [mi] ["64]
\definemathcharacter [e]   [nothing] [mi] ["65]
\definemathcharacter [f]   [nothing] [mi] ["66]
\definemathcharacter [g]   [nothing] [mi] ["67]
\definemathcharacter [h]   [nothing] [mi] ["68]
\definemathcharacter [i]   [nothing] [mi] ["69]
\definemathcharacter [j]   [nothing] [mi] ["6A]
\definemathcharacter [k]   [nothing] [mi] ["6B]
\definemathcharacter [l]   [nothing] [mi] ["6C]
\definemathcharacter [m]   [nothing] [mi] ["6D]
\definemathcharacter [n]   [nothing] [mi] ["6E]
\definemathcharacter [o]   [nothing] [mi] ["6F]
\definemathcharacter [p]   [nothing] [mi] ["70]
\definemathcharacter [q]   [nothing] [mi] ["71]
\definemathcharacter [r]   [nothing] [mi] ["72]
\definemathcharacter [s]   [nothing] [mi] ["73]
\definemathcharacter [t]   [nothing] [mi] ["74]
\definemathcharacter [u]   [nothing] [mi] ["75]
\definemathcharacter [v]   [nothing] [mi] ["76]
\definemathcharacter [w]   [nothing] [mi] ["77]
\definemathcharacter [x]   [nothing] [mi] ["78]
\definemathcharacter [y]   [nothing] [mi] ["79]
\definemathcharacter [z]   [nothing] [mi] ["7A]
\definemathcharacter [A]   [nothing] [mi] ["41]
\definemathcharacter [B]   [nothing] [mi] ["42]
\definemathcharacter [C]   [nothing] [mi] ["43]
\definemathcharacter [D]   [nothing] [mi] ["44]
\definemathcharacter [E]   [nothing] [mi] ["45]
\definemathcharacter [F]   [nothing] [mi] ["46]
\definemathcharacter [G]   [nothing] [mi] ["47]
\definemathcharacter [H]   [nothing] [mi] ["48]
\definemathcharacter [I]   [nothing] [mi] ["49]
\definemathcharacter [J]   [nothing] [mi] ["4A]
\definemathcharacter [K]   [nothing] [mi] ["4B]
\definemathcharacter [L]   [nothing] [mi] ["4C]
\definemathcharacter [M]   [nothing] [mi] ["4D]
\definemathcharacter [N]   [nothing] [mi] ["4E]
\definemathcharacter [O]   [nothing] [mi] ["4F]
\definemathcharacter [P]   [nothing] [mi] ["50]
\definemathcharacter [Q]   [nothing] [mi] ["51]
\definemathcharacter [R]   [nothing] [mi] ["52]
\definemathcharacter [S]   [nothing] [mi] ["53]
\definemathcharacter [T]   [nothing] [mi] ["54]
\definemathcharacter [U]   [nothing] [mi] ["55]
\definemathcharacter [V]   [nothing] [mi] ["56]
\definemathcharacter [W]   [nothing] [mi] ["57]
\definemathcharacter [X]   [nothing] [mi] ["58]
\definemathcharacter [Y]   [nothing] [mi] ["59]
\definemathcharacter [Z]   [nothing] [mi] ["5A]
\stopmathcollection

\starttypescript [bfmath,boldmath] [iwona] [ec,texnansi]
                                  % we want this in iwona namespace
   \definefontsynonym [Iwona-Math-Letters-Heavy]       [rm-iwonah]
   \definefontsynonym [Iwona-Math-Letters-HeavyItalic] [mi-iwonahi]
   \definefontsynonym [Iwona-Math-Symbols-Heavy]       [sy-iwonahz]
   \definefontsynonym [Iwona-Math-Extension-Heavy]     [ex-iwonah]
\stoptypescript

\starttypescript [boldmath] [iwona] [name]
                                              % we don't use this yet
   \definefontsynonym [MathRoman]     [Iwona-Math-Letters-Heavy]
   \definefontsynonym [MathItalic]    [Iwona-Math-Letters-HeavyItalic]
   \definefontsynonym [MathSymbol]    [Iwona-Math-Symbols-Heavy]
   \definefontsynonym [MathExtension] [Iwona-Math-Extension-Heavy]
\stoptypescript

\starttypescript [bfmath] [iwona] [name]
                          % key typescript, with MathRomanBold et al
   \definefontsynonym [MathRomanBold]     [Iwona-Math-Letters-Heavy]
   \definefontsynonym [MathItalicBold]    [Iwona-Math-Letters-HeavyItalic]
   \definefontsynonym [MathSymbolBold]    [Iwona-Math-Symbols-Heavy]
   \definefontsynonym [MathExtensionBold] [Iwona-Math-Extension-Heavy]
\stoptypescript


\setupformulas  [method=bold]     % magical incantation

\usetypescript [iwona] [texnansi] % defined in type-exa

\definetypeface [iwona] [mm] [bfmath] [iwona] [default]
                                   % add to the loaded typeface

\setupbodyfont[iwona]  % and go

\starttext
\startformula
n({\bfm a} + {\bfm b}) = {\bfm \Gamma}
\stopformula
\startformula
1 \theta \Gamma = {\bfm 1 \beta \Gamma \alpha ' xP} x
\stopformula
\startformula
1 \theta \Gamma = {1 \beta \Gamma \alpha ' x} x
\stopformula
\stoptext

[apologies for the length, you digest readers...]
-- 
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  Adam T. Lindsay, Computing Dept.     atl@comp.lancs.ac.uk
  Lancaster University, InfoLab21        +44(0)1524/510.514
  Lancaster, LA1 4WA, UK             Fax:+44(0)1524/510.492
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