how Draw a Tetrahedron in matlab

• Item one
• Item twoplease how to draw a Tetrahedron in matlab ?

Answer 1

[Star Strider]

Item one is easy: ... !

Item two: This is one possibility:

X = [1 0 1; 0 0 0; 0 0 0]*1.5;
Y = [0 0 0; 1 0 1; 0 0 0]*1.5;
Z = [0 1 0; 0 0 0; 1 0 1]*1.5;

figure(1)
surf(X, Y, Z)
axis equal
axis([-1  2    -1  2    -1  2])

Experiment with it and with the hgtransform function and its friends to get the result you want.

[arnaud ensberg]

how I can do to have a empty Tetrahedron please?

[Star Strider]

Replace the surf call with mesh.