最速下降算法

Excel 是一个非常优秀的报表制作软件，用VBA可以控制其生成优秀的报表，本文通过添加查询语句的方法，即用Excel中的获取外部数据的功能将数据很快地从一个查询语句中捕获到EXCEL中,比起往每个CELL里写数据的方法提高许多倍。-Excel is a very good statement of the production of software, can control its use VBA to generate excellent returns, this article by adding query method, which uses Excel in the external data access data quickly from a query to capture the EXCEL in, compared to each CELL write data many times improve.

说明：  静态数码管显示的硬件资料，及配套代码C语言版(Hardware data of static nixie tube display and supporting code c language version)

c语言经典例子导教，引导制作软件。入门必备(C language classic example guide, guide the production of software. Primer)

说明：  某软件公司年初有n名员工，每名员工有姓名、职务、工号等属性，现在该公司还有共m次操作，分别对应了员工的入职、离职、查询。现在请把所有员工建立一个线性表，建立离职、入职、查询函数，当有员工离职或入职时，修改线性表，并且根据输出格式中的要求输出。(A software company has n employees at the beginning of the year. Each employee has the attributes of name, job, job number, etc. now the company has a total of M operations, which correspond to the entry, resignation and query of employees respectively. Now, please create a linear table for all employees and create resignation, enrollment and query functions. When an employee leaves or enters, modify the linear table and output according to the requirements in the output format.)

先定义各个失效模式下的刚度矩阵，如基体拉伸失效就定义dagmatrix（nblock），按照你的退化方式用if语句判断，符合条件就把相应刚度赋予折减后的值(Define the stiffness matrix of each failure mode first, if the matrix tensile failure defines the dagmatrix (nblock), according to your degradation mode judged by if statement, accord with the conditions of the corresponding stiffness given reduced value)

python 3.23的文档，非常适合初学者(python 3.23 of the document, very suitable for beginners)

说明：  实时控制仿真，对初学者有一定的帮助，对专业人士也起到一定的帮助作用。希望大家一起进步。(Real-time control simulation is helpful to beginners and professionals. I hope you can make progress together.)

说明：  数据爬取，通过几行代码就可以在openstreetmap上爬取自己想要的路网/铁路网/地铁/自行车/步行的node.csv和link.csv文件。(Data crawling.With a few lines of code, you can climb the road network / railway network / subway / bicycle / pedestrian network you want on OpenStreetMap node.csv and link.csv Documents.)

应用背景基于verilog的串行接口控制模块，有详细的说明文档和测试模块，具有良好的学习价值。可以应用在工控领域，通信领域。基于verilog的串行接口控制模块，有详细的说明文档和测试模块，具有良好的学习价值。可以应用在工控领域，通信领域。关键技术基于verilog语言开的串行接口控制模块，可以方便和其他控制模块进行交互。基于verilog语言开的串行接口控制模块，可以方便和其他控制模块进行交互。

说明：  STM32L0xx平台的应用定时器，基于HAL库实现的应用定时器(Application timer of stm32l0xx platform based on Hal Library)