import numpy as np # array-vector.py

a = np.array([[1,2], [3, 4]])
b = np.array([[5,6], [7,8]])

print('a:      ', a)
print('b:      ', b)
print('a + b:  ', a+b)
print('a - b:  ', a-b)
print('a * b:  ', a*b)
print('a / b:  ', a/b)
print('b / a:  ', b/a)
print('a.dot(b):',a.dot(b))

