Given the following matrix A:
A = 

The eigenvalues of matrix A, labeled λ_{1} and λ_{2}, can be found using the following formulas:
λ_{1} = T/2 + √(T^{2}/4 – D)
λ_{2} = T/2 – √(T^{2}/4 – D)
where T = a + d and D = ad – bc
To find the eigenvalues of a given matrix, simply fill in the values below and then click the “Calculate” button:
Trace: 5.000000
Determinant: 39.000000
λ_{1}: 9.226812
λ_{2}: 4.226812