[Tex/LaTex] Problem with the \mathbf command

beamerboldfontsformattingmath-mode

In this MWE, I want to obtain bold letter for the letter "H" (compare the two "H") :

\documentclass[10 pt]{beamer}
\usetheme{default}
\usepackage{lmodern} % load a font with all the characters
\usepackage{fontspec}
\usepackage{cmbright}
\SetSymbolFont{largesymbols}{normal}{OMX}{iwona}{m}{n}
\usepackage{amsmath}%loads amsmath that should go before unicode-math
\usefonttheme{professionalfonts}
\defaultfontfeatures{Mapping=tex-text}  % This seems to be important for mapping glyphs properly

\begin{document}
\begin{frame}
\[
\mbox{First bold H : }\|x\|_{\mathbf{H}},\; \mbox{Second bold H : }\mathbf{H} 
\]
\end{frame}
\end{document}

but I don't know how doing it.
THe "H" produced by this MWE is tiny but no bold effect. If I use

\SetSymbolFont{largesymbols}{normal}{OMX}{iwona}{m}{n}

I obtain bold tiny "H" but the font used still not the same.

Best Answer

For sizes below 10pt the cmbright package is subsetting bold fonts (which don't exists) and uses the normal weight instead. You can change this by adding this code behind cmbright:

\usepackage{cmbright}
\fontencoding{OT1}\fontfamily{cmbr}\selectfont %to load ot1cmbr.fd
\DeclareFontShape{OT1}{cmbr}{bx}{n}{% change bx definition
<->cmbrbx10%
}{}
\normalfont % back to normalfont

Related Solutions

[Tex/LaTex] Faster way of writing \mathbf

There's a really cheesy way of saving keystrokes that is no longer than Todd's answer but just as comprehensive as Yiannis's:

\documentclass{article}

\def\*#1{\mathbf{#1}}

\def\ab{ab}
\begin{document}
 $\*v, \*w, \*\ab, \*\Gamma$.
\end{document}

Explanation: a control sequence whose name is a non-letter doesn't require either spaces or braces after it (unless of course you want it to act on multiple tokens, like plain ab; a macro such as my \ab will work just fine, though).

[Tex/LaTex] Problem with \textbf{} command

Open Sans Condensed comes in Light, Light Italic, and Bold, with no Bold Italic.

You can use it like this:

\documentclass[20pt]{beamer}
\usepackage{fontspec}
\usefonttheme{professionalfonts}
\setsansfont{Open Sans Condensed Light}[
  Numbers=OldStyle,
  ItalicFont={* Italic},
  BoldFont={Open Sans Condensed Bold}]
\begin{document}
\begin{frame}
  \frametitle{Open Sans Condensed}

  \textbf{Boldly} \textit{emphasizing} nonsense.

  \textbf{123} \textit{456} 7890
\end{frame}
\end{document}

If you have an old version of fontspec, you should put the options between \setsansfont and {Open Sans Condensed Light}; you can do that anyway if you prefer.

For reasons unknown, TeX Live includes the Condensed Light fonts but not the Condensed Bold. You may wish to write to the package maintainer about this, but that would benefit people using pdftex more than xetex or luatex.

At any rate, I wouldn’t use the bold and the light together under ordinary circumstances: usually one pairs bold with regular, and semi-bold with light.

Best Answer

Related Solutions

[Tex/LaTex] Faster way of writing \mathbf

[Tex/LaTex] Problem with \textbf{} command

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