How to draw 9 cones using kronecker product?

Hello, I am new in matlab, so I can't figure out how to draw cones like on the picture using kroneker multiplication with 3x3 matrix.

Answer 1

[Matt J]

If you have the matrix of surface values of a single cone, you could simply do,

surf(kron(ones(3), singleCone))

[Airat Galeev]

thank you

[Matt J]

You're quite welcome, but please Accept-click the answer to indicate that your question is resolved.