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一款简单的计算器，希望大家多提意见-one simple calculator, we hope to speak up

基于惯性传感器数据，使用四元数进行姿态角解算。(Based on the inertial sensor data, the attitude angle is calculated by quaternion.)

说明：  水声信道仿真程序。用于水下声信道的仿真。(underwater acoustic channel simulation program. for underwater acoustic channel simulation.)

说明：  智能家居控制，传感器搭配使用，方便快捷实惠(Smart home control, sensor collocation, convenient, fast and affordable)

基于51单片机，芯片STC89C52，单片机与PC端串口通信实验源代码(Based on 51 MCU, chip STC89C52, MCU and PC serial communication experimental source code)

FILLNANS replaces all NaNs in array using inverse-distance weighting between non-NaN values.

A native Android and jquery. Mobile example source code, directly read the local HTML information display, in practical applications can change the local HTML to the address of the network, the advantage of using jquery. mobile is the advantage of B/S architecture, one change will change the advantage.

说明：  matlab写的，把三张照片拼在一起,变成一个大的完整的，三张照片需要能拼接(Matlab wrote, put together three photos, into a large complete, three photos need to be able to stitch together)

双色球. 预定一组号，看看机选N次后，你的号码中奖数多高。(Color ball. Book a group number, look at the machine N times after the election, the number of the winning number of tall.)

该书是一本较好的R语言编程书籍，从认识到实战，手把手教你如何使用R语言进行数据分析、挖掘、画图等等。(This book is a good R language programming book, from understanding to actual combat, teach you how to use R language data analysis, mining, drawing and so on.)