What are the diagonal elements of

SYMMETRIC MATRIX

SKEW-SYMMETRIC MATRIX

HERMITIAN

SKEW-HERMITIAN

the diagnol elements of a skew hermitian matrix are necessarily real

diagnol elements of a hermitian matrix are purely imaginary or zero

diagnol elements of a skew symmetric matrix are zero

SYMMETRIC MATRIX-diagonal elements can be any real number

SKEW SYMMETRI-diagonal elements should be necessarily zero

HERMITIAN-diagonal elements must be real

SKEW HERMITIAN-diagonal elements should be zero or purely imaginary