An alternative to gnuplot, GPL, command-line, with various style options. Program can plot date, time, and category data directly. [Unix/Win32]
The PGPLOT Graphics Subroutine Library is a Fortran- or C-callable, device-independent graphics package for making simple scientific graphs.
Draws graphs of equations written in algebraic form. Can be later adjusted by changing parameter values. Free download file and installation instructions. It is licensed under the GNU GPL.
Series of charting programs for processing numeric data to produce graphs. Supports two and three-dimensional graphing and contour plotting.
A 2D plotting tool for X Window System, with ports to other systems available. Also known as xmgr, this software is now superseded by Grace.
A WYSIWYG 2D plotting tool for the X Window System and M*tif. Ports to other systems (including windows) are also available. Site includes features overview, full documentation, and downloads.
A GNU package for producing 2D plots in a variety of formats, built around an enhanced libplot C/C++ function library. Site provides links to documentation and other related software.
Function plotting program for windows. Site gives features list, screenshots, and allows download of a shareware version.
Produces scientific and mathematical graphs, and provides a range of data analyzing tools (including regression lines) with graph export facilities. [Windows freeware]
A collection of graphing programs, for plotting functions in 2D and 3D, rectanguluar and polar coordinates. [Windows shareware]
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