Python 3 by 3 Matrix Eigenvalue Solver

In this project I used row expansion formulas and defined a Polynomial class to determine the eigenvalues of any matrix with size 1 by 1, 2 by 2 or 3 by 3 by calculating the roots of the characteristic polynomial.

https://files.acrobat.com/a/preview/c65c258f-f710-4b47-9d5e-289bbe75116b