How to create a diagonal matrix from several different size matrices

Hello. I want to compute a diagonal matrix from several matrices with different sizes.for exampe A=diag(A1,A2,A3,...). A1, A2 and A3 are matrices with different sizes. Can any one help me plz? regards.

Answer 1

[Stephen23]

It is not clear if you want those matrices to be converted to a diagonal-only matrix, or if you want a block-diagonal matrix. Here is how to generate a block-diagonal matrix:

blkdiag(A1,A2,A3,...)

or simpler:

C = {cell array of all of your matrices}
blkdiag(C{:})