An online calculator that calculates the determinant of a 2 by 2 matrix.
Let A be a 2 by 2 matrix given by
A = [[a , b] , [c , d]]
where [a , b] is the first row and [c , d] is the second row of the given matrix.
The determinant of matrix A is given by
det(A) = a*d - c*b
How to use the calculator
1 - Enter coefficients a, b, c and d press "enter".