- f77/f2c
- FTP from netlib.att.com in /netlib/f2c (sources and patches)
- g77
- FTP from sunsite.unc.edu in /pub/Linux/devel/fortran
- ftnchek
- FTP from sunsite.unc.edu in /pub/Linux/devel/fortran and tsx-11.mit.edu in /pub/linux/packages/fortran
- fort77
- FTP from sunsite.unc.edu in /pub/Linux/devel/fortran
- Toolpack
- FTP from sunsite.unc.edu in /pub/Linux/devel/fortran and tsx-11.mit.edu in /pub/linux/packages/fortran
- slatec
- http://netlib2.cs.utk.edu
- PGPLOT
- http://astro.caltech.edu/~tjp/pgplot and FTP from astro.caltech.edu in /pub/pgplot
- SciLab
- FTP from ftp.inria.fr in /INRIA/Projects/Meta/Scilab
(Older versions of SciLab and PGPLOT can be found on sunsite.)