What AI says about Gnuplot

Gnuplot is a portable command-line driven graphing utility for Linux, Windows, macOS, OS/2, VMS, and other platforms, originally created to visualize mathematical functions and data interactively. It also supports many non-interactive uses such as web scripting and is used as a plotting engine by third-party applications like Octave. It offers a wide range of 2D and 3D plots and can output to interactive screens (Qt, wxWidgets, x11) or directly to files (PostScript, PDF, PNG, SVG, HTML5, etc.), with active development since 1986.