Adjuntu

Aljebra linealean, matrize karratu bateko ${\displaystyle a_{i,j}\,\!}$ elementu bati dagokion adjuntua ${\displaystyle A_{i,j}\,\!}$ zenbaki bat da, non ${\displaystyle A_{i,j}=(-1)^{i+j}\cdot \ M_{i,j}\,\!}$ den, ${\displaystyle M_{i,j}\,\!}$ ${\displaystyle a_{i,j}\,\!}$ elementuari dagokion minorra izanik.