numpy pandas

Develop class Polynomial. The internal representation of a Polynomial is an array of terms. Each term contains a coefficient and an exponent. The term 2x4 has the coefficient 2 and the exponent 4. Develop a complete class containing proper constructor and destructor functions as well as set and get functions. The class should also provide the following overloaded operator capabilities: Overload the addition operator (+) to add two Polynomials. Overload the subtraction operator (-) to subtract two Polynomials. Overload the assignment operator to assign one Polynomial to another. Overload the multiplication operator (*) to multiply two Polynomials. Overload the addition assignment operator (+=), subtraction assignment operator (-=), and multiplication assignment operator (*=).

【实例简介】

example for windows socket UDP.

anviz attandence demo

说明：  光储直流微电网，将光伏与储能系统相结合，引入不同负荷，可运行(Optical storage DC microgrid, operational)

Windows程序运行原理及程序编写流程，窗口产生过程，句柄原理，消息队列，回调函数，窗口关闭与应用程序退出的工作关系，使用VC++的若干小技巧，stdcall与cdecl调用规范的比较，初学者常犯错误及注意事项。(Windows program to run Principles and procedures for the preparation of flow, the process window, handles principle, message queues, callback function, the window closed and the application quit working relationship, the use of VC++ A number of tips, stdcall and cdecl calling norms comparison, beginners often make mistakes and Cautions.)

一个能浏览进程，杀死进程，以及结束进程的程序。能够从当前位置退出进程。-Browse a process, kill process, as well as the end of the process procedures. Able to withdraw from the process from its current location.

得到当前计算机的MAC地址，已经生成可执行文件-Get the current computer

c++primer课后练习题源代码，全部经过测试，可以直接拿来使用，省去你打字的时间。(c++ primer after-school exercises the source code, all tested and can be directly used to use, save you typing time.)

网上购物车程序，可增加，删除货物，保存付账等功能-shopping cart