The AMSFonts are fonts that were developed by the American Mathematical Society
and are now made available free of charge by the AMS. The METAFONT source
files for these
fonts are freely available, as are precompiled .pk files. There are two style
options that can be used to access the AMSFonts:
amsfonts
and amssymb
. These style options are explained in
The appropriate society-specific documentation. Not distributed
with REVTeX are the files amsfonts.sty and amssymb.sty of the
AMS -LaTeX distribution.
These files are called in by REVTeX , when the NFSS is in effect,
to give you access
to the AMSFonts; under the OFSS REVTeX itself will do the work necessary
to allow access.