surf_test, an Octave code which calls surf(), which demonstrates the display of a 3D surface or contour plot for data of the form Z=F(X,Y).
The information on this web page is distributed under the MIT license.
surf_test is available in a MATLAB version and an Octave version.
contour_gradient, an Octave code which displays contours and gradient vectors for a function f(x,y).
contour_gradient_3d, an Octave code which shows how contours and gradient vectors for a function f(x,y) can be displayed in a 3D plot.
levels, an Octave code which makes a contour plot of a function Z=F(X,Y), choosing the contour levels using random sampling.
test_interp_2d, an Octave code which defines test problems for interpolation of regular or scattered data z(x,y), depending on a 2D argument.
voronoi_mountains, an Octave code which makes a mountain plot of a Voronoi diagram, that is, a surface plot of the distance from each point to its nearest Voronoi generator.
