superdiagonal
subdiagonal
antidiagonal
main diagonal
principal diagonal
secondary diagonal
bidiagonal
scalar matrix
identity matrix
diagonalized
symmetric matrix
hemimatrix
quasipositive
Toeplitz matrix
offdiagonal
diagonal matrix
perimatrix
unitriangular
trace
semimatrix
diagonalisation
diagonalizable
diagonalization
singular matrix
unit matrix
diagonalize
column echelon form
apothem
right
leading diagonal
Hankel matrix
skew-symmetric
transpose
conference matrix
congruence
direct sum
Brianchon hexagon
Metzlerian
eigendecompose
reduced row echelon form
obtriangular
singular value decomposition
circulant
eigenvector
contragredient
echelon
adjacency matrix
bisymmetric
bicollinear
parted