Python:Numpy 求平均向量的实例

>>> import numpy as np>>> a = np.array([[1, 2, 3], [3, 1, 2]])>>> b = np.array([[5, 2, 6], [5, 1, 2]])>>> aarray([[1, 2, 3],    [3, 1, 2]])>>> barray([[5, 2, 6],    [5, 1, 2]])>>> c = a + b>>> carray([[6, 4, 9],    [8, 2, 4]])>>> c = (a+b)/2>>> carray([[ 3. , 2. , 4.5],    [ 4. , 1. , 2. ]])>>>