Linear Algebra : - ( Hermitian matrix, Unitary matrix ) - 17.

A Hermitian matrix is a matrix that is equal to its conjugate transpose. Mathematically, a Hermitian matrix is defined as
The elements of the principal diagonal of a hermitian matrix are always real numbers. The non-diagonal elements of the hermitian matrix can be complex numbers. The sum of two hermitian matrices is again a hermitian matrix. The product of two hermitian matrices is hermitian.