Bold Math

< Math | Bold Typewriter | Fonts >

see MyWay No.5 about "Mixed Normal and Bold Math" by Pragma

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David Munger wrote in this post and its followup:

I've just found a little workaround for using boldsymbols. It works even with the nath module. It's probably not the best way of doing it, but since it does the trick for me, I guess it might useful to other ConTeXters.

\define[1]\boldsymbol{{\hbox{\formula{\bfm #1}}}}

When using nath, it doesn't work with inline formulae. So in that case, better use

\unprotect
\define[1]\boldsymbol{{\hbox{\o@dollar \bfm #1 \o@dollar}}}
\protect

I also have to:

\definebodyfont
  [17.3pt,14.4pt,12pt,11pt,10pt,9pt,8pt,7pt,6pt,5pt,4pt]
  [mm]
  [mrbf=cmbx10 sa 1,
   exbf=cmex10  sa 1,
   mibf=cmmib10 sa 1,
   sybf=cmbsy10 sa 1,
   mabf=msam10  sa 1]

\setupformulae[method=bold]

Then, I may define very handy commands like

\define\grad{\boldsymbol{\nabla}}
\define[1]\vec{\boldsymbol{#1}}
\define[1]\unitvec{\hat{\vec{#1}}}

and formulas like this typeset perfectly:

\[ \grad h = a \unitvec{n} \]

Mixing Math Fonts

This should be better documented and should go into a separate document, but until then I just leave it here before it gets lost. Perhaps the example above could be typeset in a similar way as well.

Someone thinks this entry needs some more explanation.

(See: Needs Explanation?, To-Do List.)

Background: If you use

\setupbodyfont[ant] % Antykwa Torunska

the math will be typeset with Antykwa as well. (Perhaps this is a deprecated way of selecting fonts, I don't know. It works on my distribution, but not on the garden. Please use at your own risk.)

So far so good. You get pretty mathematical symbols mathcing the document style. The problem arises when you want to try something like

$\Longrightarrow$

Solution: Taco provided the following code and comments:

\starttypescript [math] [antykwa-torunska] [name]
  \definefontsynonym [MathRoman]        [ComputerModernMath-Roman]
  \definefontsynonym [MathExtension]    [ComputerModernMath-Extension]
  %definefontsynonym [MathItalic]       [ComputerModernMath-Italic]
  \definefontsynonym [MathSymbol]       [ComputerModernMath-Symbol]
\stoptypescript

Since there is more in the MathItalic fonts than just letters, it may produce un-even effects.

If you want more detailed control, you have to load extra math font families and redefine selected bits of the math collection (see also font-unk.tex, math-tex.tex and type-syn.tex)