[PRL] Tex Question: Bold font for Greek letters

[Vasileios Koutavas]

I just came across a couple of other ways to write bold math and greek 
symbols:

\boldsymbol{\lambda}
\pmb{\lambda}                     (poor man's bold :-)

They are in the amstex package and they work in math mode.

\pbm typesets several copies of the symbol with slight offsets, as 
Matthias said before.
I believe this one gives the best results for bold \langle and \rangle.

--Vasileios

Kenichi Asai wrote:

>Hi,
>
>Does anyone know how to write Greek letters in bold font or any other
>forts (in math mode)?  I tried $\mathbf{\lambda}$ but it seems it does
>not work.  I want to express lambda terms that use \lambda, @, \xi,
>\langle, and \rangle in two different fonts (to distinguish the object
>language from the meta language).
>
>Thanks in advance.
>
># It might be a bad time to ask questions.  All the books are in the
># packages...
>
>  
>