Determinant of a 2 by 2 Matrix - Calculator

An online calculator that calculates the determinant of a 2 by 2 matrix.

Let \( A \) be a \( 2 \times 2 \) matrix given by \[ A = \begin{bmatrix} a & b \\ c & d \end{bmatrix}. \] The determinant of matrix \( A \) is given by \[ \det(A) = a \times d - c \times b. \]