# [texhax] Bold symbols

Robin Fairbairns Robin.Fairbairns at cl.cam.ac.uk
Tue Nov 25 14:31:04 CET 2003

>
>    I am using T1 font encoding, i.e.,
> \usepackage{T1}{fontenc}
> \usepackage{mathptmx}
>
> and I need a bold \xi.  The usual command is $\boldsymbol\xi$. (LaTeX)
> However, this is not working with the T1 font encoding.  How can
> I access these bold symbols?  Thank you very much for your help.

\xi is not present in the t1 encoding (any more than it is in the ot1
encoding).  what you're missing is a bold (adobe) symbol font.
mathptmx uses symbol (indirectly) for greek letters, and afaik adobe
don't make a bold version.

try \pmb{\xi}, or revert to a maths font that _does_ have a bold
version.