3D元素周期表三维图片墙效果

说明：  飞行器上升段航迹优化问题，采用DIDO工具箱进行全弹道轨迹优化(DIDO toolbox is used to optimize the whole trajectory of aircraft in ascent phase)

关于PCB电路图的设计的基本方法,以及设计的不同-PCB circuit diagram of the basic design methodology and design of the different

wsn paper.Helpful for reserch on wireless sensor networks

说明：  用列文伯格-马夸尔特法(Levenberg-Marquardt)进行计算，该算法既有高斯-牛顿法的局部收敛性，又具有梯度下降法的全局性。(The Levenberg-Marquardt method is used for calculation. This algorithm has both the local convergence of the Gauss-Newton method and the globality of the gradient descent method.)

刘曼星下棋，前后得利？输入玩几个游戏，输入游戏有几个标志，最后程序输出1（先有利）或0（后有利）

单相并网逆变器，自己搭的单项锁相环，先进行不控整流，在进行并网，在整流(Single-phase grid-connected inverters, self-built single phase-locked loop)

说明：  MATLAB针对复杂曲线曲面造型及导函数(MATLAB Surface Modeling)

灰色理论原理，对数学建模解决预测问题很有用的ppt，如有不足，希望大家多多改正！-Gray theory principle of mathematical modeling to solve the issue of prediction useful ppt, is insufficient, I hope everyone a lot to correct!

设计一个名为Account类。这个类包含： （1）一个名为id的int型数据域，表示账户的身份号（默认值为0）。 （2）一个名为balance的double型数据域，表示账户余额（默认值为0）。 （3）一个名为annualInterestRate的double型数据域，保存当前年利率（默认值为0）。 （4）一个无实参构造函数，创建一个默认账户。 （5）id、balance和annualInterestRate的访问器和更改器函数。 （6）一个名为getMonthlyInterestRate（）的函数，返回月利率。 （7）一个名为withDraw的函数，从账户中支取指定金额。 （8）一个名为deposit的函数，向账户中存入指定金额。 画出类的UML图，实现类。编写一个测试程序，它创建一个Account对象，其ID为1122，账户余额为20000，年利率为4.5 。使用withDraw函数取出2500美元，使用deposit函数存入3000美元，然后输出账户余额、月利率和账户创建时间。(Design a class named Account. This class includes: (a) a named data type int id field that indicates the account identification number (default is 0). (2) a double-called balance of data fields, which means that the account balance (default is 0). (3) a double type named annualInterestRate of data fields, save the current interest rate (default is 0). (4) a no-argument constructor creates a default account. (5) id, balance and annualInterestRate access control and change control functions. (6) a named getMonthlyInterestRate () function returns a monthly rate. (7) a function named withDraw, drawn from the account specified amount. (8) a function called deposit to the account into a designated amount. Draw a UML class diagram, the implementation class. Write a test program that creates an Account object, its ID is 1122, the account balance is 20,000, an interest rate of 4.5 . Use withDraw function out $ 2,500, $ 3,000 deposit with deposit function, and then outputs the account balance, m)

说明：  opensees悬臂柱低周往复滞回分析，建模与分析过程(opensees Cantilever column low-cycle reciprocating hysteresis analysis, modeling and analysis process)