Delta-Function-and-Its-Differential

用拉格朗日乘子法求解约束最优化问题，很好的实例程序。(Lagrange multiplier method for solving constrained optimization problems, very good example programs.)

说明：  非线性问题的线性拟合问题的源程序 非线性问题的线性拟合问题的源程序用MATLAB实现(nonlinear fitting a linear source of the nonlinear fitting the linear source with MAT LAB realization)

Visual Cryptography

一个关于二次规划法求最优值的matlab程序，写的很有条理，注释很清晰，稍加修改就能使用。(A quadratic programming method to seek the optimal value of the matlab program, written in a very organized, very clear comment, a little modification to use.)

此源码会产生一个平方空间上随机的领域。样品创建拉丁超立方抽样和空间相关性是基于Cholesky分解算法(This source will generate a random field on a square space. Samples to create a Latin Hypercube Sampling and spatial correlation is based on the Cholesky decomposition algorithm)

用MATLAB编写的一个小的动画程序，心情不佳时可以疗伤。(Written by a small MATLAB animation program, and I feel bad when healing.)

一个不错的多元逐步回归算法.很实用，不过仅供参考奥(a good multiple stepwise regression algorithm. Very practical, but for reference purposes only Olympic)

It is a program to draw kaisar window

如上图所示，定向耦合器由完全相同的直波导与弯曲波导构成，波 导芯为宽高比相同（均为 a） 的正方形， 其工作波长，波导材料 对 TE 模式的折射率，及圆弧形弯曲波导的半径 r 等参数如图所 示，若波长为 1550 nm， 归一化光功率为 1 的光波从直波导输 入，请选择适当的满足单模工作的波导宽度 a， 然后给出从圆形弯 曲波导输出的归一化光功率 P4与两波导边缘的间距 d(Directional coupler by the same straight and curved waveguides constituting the waveguide, waves Conducting core is the same aspect ratio (are a) square, its operating wavelength, the waveguide material The refractive index of the TE mode and the arc-shaped curved waveguide of radius r and other parameters as shown Shown, if the wavelength of 1550 nm, normalized optical power a light straight waveguide input In, the appropriate work to meet the single-mode waveguide width a, and then is given a circular bend Curved waveguide output normalized optical power P4 and two edges of the waveguide spacing d)

说明：  matlab基础教学系列5，一步步教学代码(the door to matlab)