Free Penguin Download - Gnuplot
Gnuplot 4.4.2

32 bit
deb for Ubuntu
deb for Debian
rpm for openSuse
64 bit
deb for Ubuntu
deb for Debian
rpm for openSuse
Gnuplot Package for making 2D and 3D graphs from data and functions.
Supports lots of output formats, including drivers for many printers,
(La)TeX, (x)fig, Postscript, and so on.
The X11-output is packaged in gnuplot-x11. Data files and self-defined functions can be
manipulated by internal C-like language.
Can perform smoothing, spline-fitting, or nonlinear fits.
Can work with complex numbers. This package is for transition and to install a full-featured
gnuplot supporting the X11-output.
If you want to skip the X-windows-dependency
(e.g. if you're running a small server)
just install "gnuplot-nox" and skip this meta-package.
Screenshots:

