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Colin Kelley
Thomas Williams

Gnuplot is a command-line driven interactive function plotting utility for UNIX, MSDOS, and VMS platforms. The software is copyrighted but freely distributed (i.e., you don't have to pay for it). It was originally intended as graphical program which would allow scientists and students to visualize mathematical functions and data. Gnuplot handles both curves (2 dimensions) and surfaces (3 dimensions). Surfaces can be plotted as a mesh fitting the specified function, floating in the 3-d coordinate space, or as a contour plot on the x-y plane. For 2-d plots, there are also many plot styles, including lines, points, lines with points, error bars, and impulses (crude bar graphs). Graphs may be labeled with arbitrary labels and arrows, axes labels, a title, date and time, and a key. The interface includes command-line editing and history on most platforms.

  • contains two MSDOS executables: a standard 8086 executable and the other which requires a card with a VESA driver.
  • contains the necessary files for a MS Windows version of Gnuplot.
  • contains the source code for various platforms including MSDOS, MS Windows and OS/2.
  • contains the documentation.
(modified from the documentation)
Download the MSDOS versions [552 KB].

Download the Windows version [419 KB].

Download the documentation [600 KB].

Download the source code [740 KB].

Look at the readme file from the program.

Other Internet Resources: