[OS X TeX] Fourier and amsart

Bruno Voisin bvoisin at mac.com
Mon Jun 28 09:13:57 CEST 2004

Le 28 juin 04, à 04:38, Richard Seguin a écrit :

> However, using Fourier, $\mathbf{T}$ is bold, but is upright, and 
> $\boldsymbol{T}$ is not bold, but is italic.

This is normal behaviour. \mathbf allows to use the text bold font in 
maths, in other words it produces in maths the same output as does 
\textbf in text; hence the upright result.

\boldsymbol, from the amsbsy package (deprecated in favour of bm), and 
\bm, from the bm package, do something different: they select bold 
maths fonts, provided these fonts are available. In other words they 
take the (italic) math symbol you are asking for, look for a bold 
version of it, and, if it's available, pick it up; if it's not, they 
apparently revert to the non-bold version. Both \boldsymbol and \bm aim 
at providing more practical and extensive variants of LaTeX's original 

Bruno Voisin

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