gnuplot homepage
Science, Math, Software, Graphing - Gnuplot Central. Official website for gnuplot 4.
http://www.gnuplot.info/
Aabel
Science, Math, Software, Graphing - Aabel. Statistical and Graphing Software for Mac OS X.
https://www.gigawiz.com/
MathGrapher
Draw 2D and 3D graphs, shaded surfaces and contour plots forFunctions and Data. Use powerfull linear and nonlinear least squares curve fitting methodsto find a least squares fit to your data. Integrate and analyse systems of up to 20coupled differential equations (ODE's). Calculate zeroes and extrema for functions,statistical properties for data. Draw 2D and 3D projections, power spectrum andPoincare sections for ODE's and iterative maps. Matrix operations. Cellular automata.
https://www.mathgrapher.com/
Welcome to MoNooN
Science, Math, Software, Graphing - MoNooN Grapher. A collection of graphing programs, for plotting functions in 2D and 3D, rectanguluar and polar coordinates.
http://www.monoon.com/
Ploticus Data Display Engine
Science, Math, Software, Graphing - Ploticus Data Display Engine. An alternative to gnuplot, GPL, command-line, with various style options.
https://ploticus.sourceforge.net/
GLgraph
Science, Math, Software, Graphing - GLgraph. An OpenGL based function grapher for Linux, handling 3 unknowns (x,z,t) and producing a 4D function with 3 space and 1 time dimension.
https://glgraph.kaosu.ch/
MTR Software Home Page
Providing the scientific, engineering and educational communities with fitting solutions since 1984
http://fitall.com/