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Gnuplot

Oct 10.2018 - Version:
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Gnuplot is a portable command-line driven graphing utility for Windows platform. 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 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. Gnuplot is easily extensible to include new output modes.
Documentation / Demo
#plotter, #plot, #graph, #function
Code install
#
# $Id: surface1.dem,v 1.15 2017/03/01 18:42:49 sfeam Exp $
#
set title '3D surface from a grid (matrix) of Z values'
set xrange [-0.5:4.5]
set yrange [-0.5:4.5]

set grid
set hidden3d
$grid << EOD
5 4 3 1 0
2 2 0 0 1
0 0 0 1 0
0 0 0 2 3
0 1 2 4 3
EOD
splot '$grid' matrix with lines notitle

unset hidden3d
undefine $*

set samples 21
set isosample 11
set xlabel 'X axis' offset -3,-2
set ylabel 'Y axis' offset 3,-2
set zlabel 'Z axis' offset -5
set title '3D surface from a function'
set label 1 'This is the surface boundary' at -10,-5,150 center
set arrow 1 from -10,-5,120 to -10,0,0 nohead
set arrow 2 from -10,-5,120 to 10,0,0 nohead
set arrow 3 from -10,-5,120 to 0,10,0 nohead
set arrow 4 from -10,-5,120 to 0,-10,0 nohead
set xrange [-10:10]
set yrange [-10:10]
splot x*y

http://gnuplot.sourceforge.net/demo_5.2/surface1.html
Screenshots Gnuplot
Gnuplot screenshot 1Gnuplot screenshot 2Gnuplot screenshot 3Gnuplot screenshot 4
Comments
10
4 total
5 rating comment star 5
4 rating comment star 4
3 rating comment star 3
2 rating comment star 2
1 rating comment star 1
ION59CIMED
rating vote

produces very high quality output.
ANCA980
rating vote

An excellent graphing tool. It is easy to learn (although advanced features require a steep learning curve) and produces graphs that are equal to nearly any other graphing tool out there. Very well documented.
HUDSONW45
rating vote

Excelent and simple.
IUKSOLO
rating vote

Useful!
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Gnuplot
www.gnuplot.info
Windows
Education

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