> I need some integral signs with circles/ellipses around them > (e.g. for control volumes). > > What can you suggest (espec something scalable)?
I suggest that you directly integrate font pxbexa.pfb (part of the
pxfonts bundle on CTAN[1]) into groff.
Werner
[1] Comprehensive TeX Archive Network, e.g. ftp.dante.de/pub/tex).
