Laplace expansion

== English == === Etymology === Named after Pierre-Simon Laplace. === Noun === Laplace expansion (plural Laplace expansions) (mathematics) An expression for the determinant |B| of an n × n matrix B that is a weighted sum of the determinants of n submatrices (or minors) of B, each of size (n − 1) × (n − 1). Synonym: cofactor expansion