a = np.array([1, 2, 3])
b = np.array([4, 5, 6])

# Basic operations
print(a + b)   # [5 7 9]   - addition
print(a - b)   # [-3 -3 -3] - subtraction
print(a * b)   # [4 10 18] - multiplication
print(a / b)   # [0.25 0.4 0.5] - division