Gnuplot is a portable, command-line driven graphing tool used to visualize mathematical functions, interact with data, and web-script. It can also be used as a plotting engine for third-party applications.
Gnuplot is available to download for free, and is supported on Windows, MacOS, Linux, and various other platforms.
The Libraries and ITS do not provide direct support or training for Gnuplot. Tutorials and guides are available to get used to the program. Open the user manual here.