Represent the matrix as a structured array
IdentityMatrix gives the identity matrix as a SparseArray object.IdentityMatrix by default creates a matrix containing exact integers.The n n identity matrix is symmetric, positive definite and unitary, while the m n identity matrix is unitary.The n n identity matrix ℐ satisfies the relation m.The entries of the identity matrix are given by that is, one for main diagonal entries and zeros elsewhere.