def f(*a):
	for i in range(len(a)):
		print(i, a[i])

# polynomial(2, 4, 6, 8)(x) -> 2x^0 + 4x^1 + 6x^2 + 8x^3
def polynomial(*ai):
    def f(x):
        r = 0
        for n, a in enumerate(ai):
            r += a*x**n
        return r
    return f

def func(A: np.ndarray)

np.linalg.det(A)

np.dot(A, x)