Goldbach conjecture: Verify 2000 is even less able to break down into two prime...

以stc89c58为控制器，外围包括IIC，12864，蜂鸣器，AD模块(In stc89c58 for the controller, a peripheral including IIC, 12864, buzzer, AD module)

程序运行效果为： 1 提醒用户输入用户名 2 接受用户运算输入并运算输出 3 询问用户是否进行下一个运算 4 若用户要求再输入一组数据，则跳转3，否则退出。

载入xml数据，在wpf中实现导入xml文件(Loading xml data)

开发环境为c#,编程语言c#,实现串口的检测和读取并实现数据的处理和地图显示(Development environment for c#, programming language c#, serial port detection and read and achieve data processing and map display)

学会使用MATLAB仿真软件搭建MSK调制解调仿真电路建立MSK调制解调系统仿真模型(Learn how to use MATLAB simulation software to build the MSK modulation and demodulation simulation circuit MSK modulation and demodulation system simulation model)

数据结构线性表简单创建，插入，删除，等运算，方便操作。(Data structure linear table is easy to create, insert, delete, and other operations, easy to operate.)

在图片末端隐藏信息，利用C++语言编程实现。(Picture information steganography.)

说明：  本文件是MTK平台开发过程中自我总结的一些常用函数，适用于在做UI层绘制的时候方便参考(This document is a common function that is self-summarizing in the development process of MTK platform. It is suitable for convenient reference when doing UI layer drawing.)

fuzzy-PID-controller-master PID 控制算法实现 fuzzy-PID-controllerThis repository uses C to implement a fuzzy PID controller to automatically tune PID parameters Kp,Ki and Kd.

说明：  设计一个正弦信号发生器，使用凌阳公司的16位单片机SPCE061A作为中央控制器，结合DDS芯片AD9850，产生0～15MHz频率可调的正弦信号,正弦信号频率设定值可断电保存；使用宽频放大技术，在50Ω负载电阻上使1K～10MHz范围内的正弦信号输出电压幅度VP-P=6V±1V；产生载波频率可设定的FM和AM信号；调制信号为1KHz的正弦波，调制信号的产生采用DDS技术，由CPLD和Flash ROM加上DAC进行直接数字合成；二进制基带序列码由CPLD产生，在100KHz固定载波频率下进行数字键控，产生ASK，PSK信号。(Design of a sinusoidal signal generator, the use of Sunplus 16-bit MCU SPCE061A as the central controller, combined with DDS chip AD9850, have adjustable frequencies 0 ~ 15MHz sinusoidal signal, sinusoidal signal frequency settings can be stored power using broadband amplification, in a 50Ω load resistor to 1K ~ 10MHz sinusoidal signal within the output voltage amplitude VP-P = 6V ± 1V generating the carrier frequency of the FM and AM can be set signal 1KHz sine wave modulation signal, modulated signal generation using DDS technology, coupled by the CPLD and Flash ROM DAC for direct digital synthesis binary baseband sequence code generated by the CPLD in a fixed carrier frequency 100KHz digital keying, resulting in ASK, PSK signals.)