z-nPID整定

java 实现的烟雾效果,程序简单但效果生动-smoke effects, a simple but vivid effect

说明：  模拟实现了银行系统的各种业务，转账 存款 取款 修改密码等(Simulated realization of various business of banking system)

不同椭球坐标转化，54-84，统一椭球参数高斯正反算-Coordinate transformation ,54-84

共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(The Conjugate Gradient method is a method between the steepest descent method and the Newton method. It only needs to use the first derivative information, but overcomes the shortcoming of the steepest descent method and avoids the need for the Newton method to store. And the disadvantage of calculating the Hesse matrix and inverting, the conjugate gradient method is not only one of the most useful methods for solving large linear equations, but also one of the most effective algorithms for solving large-scale nonlinear optimization. Among various optimization algorithms, the conjugate gradient method is a very important one. The advantage is that the required amount of storage is small, step convergence, high stability, and no external parameters are required.)

Ｄｅｌｐｈｉ编写的俄罗斯方块游戏，可玩性高，适合初学者看-Delphi sheet prepared by the Russian game, the fun, to see for beginners

source code about game mobile

用 c++编写的GPS水准拟合的程序，包含一些基本的拟合方法。-prepared using the GPS standard fitting procedures, to include some basic fitting method.

抗差Kalman滤波，抗差最小二乘等matlab源代码(Robust Kalman filtering, robust least squares matlab source code)

利用图形化界面编写的计算时间的计时器，用3D渲染程序-use graphical interface, the time taken to prepare the timer, 3D rendering process

弹簧阻尼单元，可用于有限元编程分析。仅供参考！(Spring-damper units, can be used for finite element analysis program. For reference only!)