eigvalues

import numpy as np

def create_matrix (r):
    t = []
    m = []
    for i in range(0, int(r)):
        for j in range(0, int(r)):
            t.append(np.random.random())
        m.append(t)
        t = []
    return m

def symmetrize(a):
    return np.tril(a) + np.tril(a, -1).T

def create_vector(n):
    m = []
    for i in range(0, int(n)):
        m.append(np.random.random())
    return m