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Gnuplot is a portable command-line driven graphing utility for Linux, OS/2, MS Windows, OSX, VMS, and many other platforms. The source code is copyrighted but freely distributed (i.e., you don't have to pay for it). It was originally created to allow scientists and students to visualize mathematical functions and data interactively, but has grown to support many non-interactive uses such as web scripting. It is also used as a plotting engine by third-party applications like Octave. Gnuplot has been supported and under active development since 1986.
Gnuplot supports many types of plots in either 2D and 3D. It can draw using lines, points, boxes, contours, vector fields, surfaces, and various associated text. It also supports various specialized plot types.
This manual is available online for free at gnuplot.info. This manual is printed in grayscale.
Thomas Williams
A historian of the early Middle Ages and a former curator at the British Museum, Thomas Williams worked as project curator for the major international exhibition Vikings: Life and Legend. His doctoral research was undertaken at UCL’s Institute of Archaeology and he has taught at UCL and the University of Cambridge. He is a fellow and trustee of the Society of Antiquaries of London. Favorably reviewed in Britain, his previous books Lost Realms, Viking London, and Viking Britain were not published in America, so God’s Hammer is Thomas’s American debut. He lives in England.
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