Callable from Fortran and C programs on Linux and Mac OS X. Binaries and source code are available for purchase. Also includes conversion and utility programs.
Graphical library of more than fifty subroutines that produce publication-quality drawings to printers, display adapters and as Postscript, CGM, and AutoCAD DXF files. Source code available.
A set of Fortran numerical and graphical libraries empowering users with run-time animation, contour plots, surface plots for gaining insights into your computation. [Shareware, 30 days trial]