GB巫术英译版

电力电子经典教材《Fundamentals of power electronics》习题答案，有助于电力电子的基础学习。(Power Electronics classic textbook " Fundamentals of power electronics" answer exercises to help power electronics based learning.)

龙贝格积分 高斯列主消元法 牛顿迭代 三次样条插值 龙格卡塔(Romberg integration Gauss principal elimination method Newton iteration three spline interpolation Runge Cartagena)

Samples are organized by chapter, and then by "application" or example name. You should open a project in Visual Studio .NET through the .sln (solution) file. Note that Visual Studio .NET automatically creates various temporary and debugging files in the obj and bin sub-directory for each project. The actual uncompiled code is only the .vb files that are contained in the root project directory.

AT89S52单片机 程序 矩阵键盘，数码管显示-Single-chip program AT89S52 matrix keyboard, digital display

Android登录各大网站微博OAuth认证实例，附完整实例源代码。比如新浪、腾讯、网易、搜狐等微博的OAuth认证功能，运行效果如测试界面所示。实现方面，在代码中初始化各门户网站微博的认证信息、设置当前操作的weibo，不同的weibo请求存在着差异，在发送数据的时候进行Base64Encoder加密。

收音机控制程序，主要完成频率的读取，lcd的显示控制（运行环境ADS）-Radio control program, mainly to complete the reading frequency, lcd display control (operating environment ADS)

某个公司采用公用电话传递数据，数据是四位的整数，在传递过程中是加密的，加密规则如下： 　　　每位数字都加上5,然后用和除以10的余数代替该数字，再将第一位和第四位交换，第二位和第三位交换。-A company to transfer data using public telephones, the data is four integers, in the transmission process is encrypted, encryption rules are as follows: Each figures with five, and then divided by 10 instead of the more than a few numbers, and then The first and fourth exchange, the second and third exchange.

TC1782中文资料，可以快速上手，学习内部芯片构造与原理(TC1782 Chinese materials, can quickly start to learn the internal chip structure and principles)

在设计数字滤波器时，通常采用MATLAB来进行辅助设计和仿真,介绍具体的设计方法-In the design of digital filters, it is usually carried out using MATLAB-aided design and simulation, introduction of specific design methods

说明：  基于matlab的男女生辨别系统，根据基音频率进行辨别，在安静环境内，识别度较高(Matlab-based male and female discrimination system, based on the pitch frequency to identify, in a quiet environment, the recognition degree is higher)