Adjugate

Adjugate[m] gives the adjugate (classical adjoint) of a square matrix m.

Examples

Adjugate of a 2x2 matrix:

Adjugate[{{a, b}, {c, d}}]
(* {{d, -b}, {-c, a}} *)

Relation to inverse:

m = {{1, 2}, {3, 4}};
Adjugate[m] == Det[m] * Inverse[m]
(* True *)

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