The determinant of a square matrix -matrix with the same number of rows as columns- is obtained by subtracting the multiplication of the elements of the main diagonal of the matrix and the multiplication of the elements of the secondary diagonal of the same matrix.

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Matrix determinant calculator. This calculator helps to find the determinant, expanding a row or column, using the reduction row for

Rules for calculating the determinant of matrices of dimension 1, 2 and 3 and Laplace's rule by rows and columns. With examples and solved exercises.