Laplace expansion
N×N DETERMINANT AS SUM OF N MINORS WEIGHTED BY COFACTOR FROM ROW AND COLUMN NOT IN MINOR
Determinant expansion; Expansion by minors; Cofactor expansion
In linear algebra, the Laplace expansion, named after Pierre-Simon Laplace, also called cofactor expansion, is an expression of the determinant of an matrix as a weighted sum of minors, which are the determinants of some submatrices of . Specifically, for every ,