ThmDex – An index of mathematical definitions, results, and conjectures.
F12046
Formulation 0
Let $A \in \mathbb{R}^{N \times N}$ be a D6160: Real square matrix.
Then \begin{equation} A \text{Adj} (A) = \text{Adj}(A) A = \text{Det}(A) I_N \end{equation}