tetrahedron.m

hi i have a huge collection are you interested

x = [0 0 .5 0
    .5 .5 1 1
    1 .5 .5 .5];
y = [0 0 1 0
    1 1 0 0
    0 .5 .5 .5];
z = [0 0 0 0
    0 0 0 0
    0 1 1 1];
clf
h = patch(x,y,z,'y')