gnuplot-x11 - 5.4.4+dfsg1-2+b2 main

Gnuplot is a portable command-line driven interactive data and function
plotting utility that supports lots of output formats, including drivers
for many printers, (La)TeX, (x)fig, Postscript, and so on.
.
Data files and self-defined functions can be manipulated by the internal
C-like language. Can perform smoothing, spline-fitting, or nonlinear fits,
and can work with complex numbers.
.
This package contains the terminal driver that enables gnuplot to plot
images interactively under X11.