I have a matrix q and i need the diagonal of qq'

I have a 5x5 matrix q and i need to obtain the diagonal of qq' anyone know how to do this and what qq' is?

Answer 1

[Dr. Seis]

In your Help Navigator, search for "arithmetic operators" and "diag"

diag(q*q')

is the same as

diag(q*transpose(q))

if all of the elements in q are real. Otherwise ' will give you the complex-conjugate transpose.

Answer 2

[chengxuan yu]

Does the q is the z and q' is the transposed matrix of q?