Definition that contains square matrix
- diagonal (mathematics) a set of entries in a square matrix running diagonally either from the upper left to lower right entry or running from the upper right to lower left entry
- determinant a square matrix used to solve simultaneous equations
- eigenvalue (mathematics) any number such that a given square matrix minus that number times the identity matrix has a zero determinant
- secondary diagonal the diagonal of a square matrix running from the lower left entry to the upper right entry
- matrix transposition the interchange of each row of a square matrix with the corresponding column
- diagonalisation changing a square matrix to diagonal form (with all non-zero elements on the principal diagonal)
- latin square a square matrix of n rows and columns; cells contain n different symbols so arranged that no symbol occurs more than once in any row or column
- singular matrix a square matrix whose determinant is zero
- diagonalization changing a square matrix to diagonal form (with all non-zero elements on the principal diagonal)
- magic square a square matrix of n rows and columns; the first n^2 integers are arranged in the cells of the matrix in such a way that the sum of any row or column or diagonal is the same