arc-length with verification examples

YALMIP是一种定义和求解高级优化问题的模化语言，能够解决所有标准优化问题和高级主题，完全可以替代Matlab中的Optim和LMI工具箱(YALMIP is a high-level optimization problem definition and solving the modeling language, to solve the optimization problem for all standard and advanced topics, can replace Matlab and the LMI toolbox in the Optim)

说明：  用最速下降法、共轭梯度法、牛顿法、BFGS求解范例目标函数.(Solving the case objective functions using the steepest descent method, conjugate gradient method, Newton method and BFGS method.)

单通道欠采样测量频率的程序 可以正确得到信号的频率(dantongdao.m)

根据毕奥-萨伐尔定律推导了运动电荷产生的磁感应强度的公式，用曲面显示运动电荷产生的磁感应强度的分布规律。 通电线段的磁感应强度公式 磁感应线的半径形成等比数列，精确显示了二维磁感应线(Derivation based on the Biot- Savart law of magnetic induction generated by the moving charge formula, the distribution of magnetic induction surface display generated by the moving charge.)

强度分布 指数分布 应力分布 指数分布(Intensity distribution of the stress distribution exponential distribution exponential distribution)

主动电流扰动法在并网发电系统孤岛检测中的应用(Of active current perturbation Law islanding detection of grid power system)

闭环系统kalman滤波方程，基于连续状态空间连续模型(closed-loop system kalman filter)

说明：  介绍如何计算lms算法的步长问题，非常有用(How to calculate the step of the lms algorithm is very useful)

matlab实现部分Photoshop特效(mini Photoshop)

its used to remove haze..