Cgraph - PostScript plotting library in C CGraph is a set of C functions that generate PostScript or Encapsulated PostScript for publication quality scientific plots. Output color or B&W easily. Many different plots scales including log-log. Works with any C compiler. Freeware. (Aug 1999)
Flounder - 4-D data visualization Flounder is a program to quickly visualize 4D data (x,y,z,t). It can produce isosurfaces, solid renderings, as well as 2D slices. Output options include PNG, GIF, and AVI files. Open Source. Unix/Win32 (Apr 2001)
GnuPlot Gnuplot is a command-line driven interactive function and data plotting utility for UNIX, MSDOS, and VMS platforms. It supports 2-D and 3-D plots including curves and sufaces. Includes complete source in C. (Feb 1998)
Guppi - app for graphing and statistical analysis Guppi is an easy-to-use graphical interface for plotting data and performing statistical manipulations. It is a GNOME application, and is available from GNOME CVS. Freeware (Jul 1999)
mathplot - interactive/batch function grapher mathplot is a GUI frontend for interactive graphing of functions to XWindows. You can have both equations (y=f(x) or f(x,y)=g(x)) and inequalities Postscript output is available. Freeware. (Jul 1999)
PGPLOT - Graphics Subroutine Library PGPLOT is a Fortran or C callable, device-independent graphics package for making simple scientific graphs. Supports laser printers, pen plotters, PostScript, and GIF. Supports most Unix and Win32. Freeware for noncommercial use. (Aug 1999)
Books about GraphingA complete list of books on Graphing available through Amazon.COM