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用excel计算经纬度之间的距离，方便好用。(Using Excel to calculate the distance between longitude and latitude is convenient and easy to use.)

说明：  RxPermissions一个强大的6.0运行时权限处理框架(This library allows the usage of RxJava with the new Android M permission model.)

说明：  Wind using mppt algo

说明：  ADXL372与MCU之间的spi通讯示例(the communication which include ADXL372 and MCU by spi)

Exe中嵌入Dll加载引用库库，可隐藏系统的架构，又可同时系统的可扩展灵活性，多人并行开发！(Exe embedded Dll load referenced library library to hide the system architecture, but also at the same time the system can be expanded flexibility and many parallel development!)

说明：  PSTR模型，解决面板数据的非线性关系问题，适合初学者使用(PSTR model, which solves the problem of non-linear relationship of panel data, is suitable for beginners to use.)

OHCI 规范 Open Host Controller Interface Specification for USB -OHCI specification Open Host Controller Interface Specificationfor USB

说明：  本资源是3层的自编码器加上稀疏正则项约束的matlab代码。隐层激活函数选sigmoid函数，输出层选线性函数，程序中以一个标准数据集sonar为例，使用该方法可以做无监督表征学习，数据压缩，多任务学习等(This resource is a 3-layer self-encoder plus matlab code for sparse regular term constraints. The hidden layer activation function selects the sigmoid function, and the output layer selects the linear function. The program uses a standard data set sonar as an example. This method can be used for unsupervised representation learning, data compression, multi-task learning, etc.)

采用以简单的通用微处理器STM32F4为核心的控制模块和NEO-6M为核心的采集模块，最终完成了GPS导航终端的设计，并通过通用USB转串口数据传输方式实现数据传递。详细给出了系统的硬件体系结构，重点介绍了与导航相关的应用程序以及流程设计。对于研究GPS接收以及GPS导航系统的民用化具有一定的意义。(Precise positioning with GPS)

学生成绩管理 学生平均成绩 学生成绩总和-Student achievement management of student grade point average the sum of student achievement