qq_20739061的博客

Numpy科学计算库（一）# Author: Zubin#coding:utf-8from numpy import arange#数组的求和def sum(n): a=arange(n)**2 #数组0-n-1的平方 print(a) b=arange(n)**4 print(b) c=a+b return cprint(sum(...

NumPy 数组–创建多维数组from numpy import *a=arange(5) #填充0-5个元素print(a)print(a.dtype) #数组类型print(a.shape) #一维数组print(a.shape[0]) #数组长度#创建一个三维数组m1=array([arange(3),arange(3),arange...

# Author: Zubin# -*- coding: utf-8 -*#NumPy数组--获取单个数组值和数组的分片from numpy import *a=array([[1,2,3],[4,5,6],[7,8,9]])print(a)[[1 2 3] [4 5 6] [7 8 9]]python数组切片# Author: Zubin# -*- coding...

# Author: Zubin# -*- coding: utf-8 -*#NumPy数组--获取单个数组值和数组的分片from numpy import *a=array([[1,2,3],[4,5,6],[7,8,9]])print(a)print("")#对矩阵中的元素进行操作print(a[0:1,0:2])print(a[1:2,1:3])print(a[2:,0...