عمليات بسيطة

ary = np.array([0, 5, 10, 15, 20])
ary + 5 # --> [ 5, 10, 15, 20,  25]
ary - 5 # --> [-5,  0,  5, 10,  15]
ary / 5 # --> [ 0,  1,  2,  3,   4]
ary * 5 # --> [ 0, 25, 50, 75, 100]

ary = np.array([[0, 1], [2, 3], [4, 5]])
ary + 5 
>>> [[5, 6], [7, 8], [9, 10]]

ary1 = np.array([1, 2, 3])
ary2 = np.array([4, 5, 6])
ary1 + ary2 # [1 + 4, 2 + 5, 3 + 6]
>>>[5, 7, 9] 

ary1 = np.array([[0, 1], [2, 3], [3, 4], [5, 6]])
ary2 = np.array([[0, 1], [2, 3], [3, 4], [5, 6]])
ary1 + ary2 # --> [[0+0, 1+1], [2+2, 3+3], [3+3, 4+4], [5+5, 6+6]]
>>> [[ 0,  2], [ 4,  6], [ 6,  8], [10, 12]]

ary1 = np.array([[0, 1], [2, 3], [3, 4], [5, 6]])
ary2 = np.array([[2, 5]])
ary1 + ary2 # --> [[0+2, 1+5], [2+2, 3+5], [3+2, 4+5], [5+2, 6+5]]
>>> [[2, 6], [4, 8], [5, 9], [7, 11]]

ary1 = np.array([[0, 1], [2, 3], [3, 4], [5, 6]])
ary2 = np.array([[2, 5, 3]])
ary1 + ary2
>>> ValueError: operands could not be broadcast together with shapes (4,2) (1,3)