Aljebra linealean, matrize karratu bateko a i, j {\displaystyle a_{i,j}\,\!} elementu bati dagokion adjuntua A i, j {\displaystyle A_{i,j}\,\!} zenbaki bat da, non A i, j = i + j ⋅ M i, j {\displaystyle A_{i,j}=^{i+j}\cdot \ M_{i,j}\,\!} den, M i, j {\displaystyle M_{i,j}\,\!} a i, j {\displaystyle a_{i,j}\,\!} elementuari dagokion minorra izanik. Wikipedia