learningcoder的专栏

# -*- coding:utf-8 -*- import numpy as np t1 = np.arange(6).reshape(2, 3) t2 = np.arange(10, 16).reshape(2, 3) # 竖直拼接,vertically 相当于union all # print(np.vstack((t1, t2))) # 水平拼接 horizontally # print...

# -*- coding:utf-8 -*- import numpy as np import random # ############数值型的数组############# # 创建数组 t1 = np.array([1, 2, 3]) print(t1) # [1 2 3] print(type(t1)) # <class 'numpy.ndarray'> t2 =...

# -*- coding:utf-8 -*- import numpy as np # 和数字计算，广播计算(加，减，乘，除) t1 = np.arange(5) print(t1) # [0 1 2 3 4 ] print(t1 + 1) # [ 1 2 3 4 5] # print(t1 / 0) # [nan inf inf inf inf] nan=not a num...