CTG - Gnuplot

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Supercomputing Challenge
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  [Technical Guide]

Gnuplot is a command-driven interactive function and data plotting program. It is free of charge and readily available from ftp sites on the internet. For your convenience, you may download a copy of gnuplot for Windows here. If you wish to download versions for different operating systems, visit http://www.gnuplot.info which has all the versions of gnuplot you could ask for.

Gnuplot is a powerful tool used to create plots of data and functions. Gnuplot has many settings which can be modified to fine-tune your plots. The tutorial will not go into too much detail about every possible setting, but will go over the procedures to create some simple plots, with some additional "fine-tuning" included.

Commands for Gnuplot can be typed in at its prompt, or specified within a command file which you can specify as gnuplot's argument(s). We will focus on typing commands at the prompt.

Before plotting your data files or functions, you must pick the output format. Gnuplot has a wide variety of terminal and output file types. For our purposes, we wish to be able to display our plots to the screen (terminal type "windows"), and also to save our plots as images (".gif" files), so we can incorporate our plots into reports created on word processors (such as Microsoft Word), or into HTML documents (web pages).

Gnuplot is excellent at creating two-dimensional and three-dimensional plots, as you will see from the following tutorial on Gnuplot.

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