gnuplot: gnuplot 4.6.6 (Graphing utility)  
gnuplot:  
gnuplot: Gnuplot is a portable command-line driven graphing utility for Linux, 
gnuplot: OS/2, MS Windows, OSX, VMS, and many other platforms. The source code 
gnuplot: is copyrighted but freely distributed. 
gnuplot: It was originally created to allow scientists and students 
gnuplot: to visualize mathematical functions and data interactively, but has 
gnuplot: grown to support many non-interactive uses such as web scripting. It 
gnuplot: is also used as a plotting engine by third-party applications like 
gnuplot: Octave.  
gnuplot: http://www.gnuplot.info/

