GUIsheji

脉冲振幅调制（PAM）：理论分析和代码实现(Pulse amplitude modulation (PAM): Theory and Code Implementation)

课后习题数字信号处理的MATLAB实现Date代码(Homework digital signal processing in MATLAB Date code)

用于光电集成来耦合光，计算光栅偶和效率，运用FDTD算法的一个matlab编程(Coupling Efficiency)

两本matlab方面的英文原版书，很难得的，欢迎大家下载(Matlab two aspects of the original English edition book, a rare and welcome you to download)

一、 牛顿－拉夫逊法概要 首先对一般的牛顿－拉夫逊法作一简单说明。已知一个变量X的函数 （4－6） 解此方程式时，由适当的近似值X（0）出发，根据 （4－7） 反复进行计算，当X（n）满足适当的收敛判定条件时就是（4－6）式的根。这样的方法就是所谓的牛顿－拉夫逊法。 式（4－7）就是取第n次近似解X（n）在曲线 上的点 处的切线与X轴的交点作下一次X（n+1）值的方法。参考图4－2（a）。在这一方法中为了能收敛于真解，初值X（0）的选取及函数f（X）必须满足适当的条件，如图4－2（b）所示的那种情况就不能收敛或收敛到别的根上去。 这一方法还可以做下面的解释，设第n次迭代得到的解与真值之差，即 的误差为 时，则 （4-8） 把 在 附近对 用泰勒级数展开 （4-9） 上式略去 以下的项 （4-10） 的误差可近似由上式计算出来 图4-2 （4-11） 比较式（4-7）和（4-11），可以看出牛顿-拉夫逊法的修正量和 的误差的一次项相等。 用同样的方法考虑，给出对n个变量 (:Because of the importance and complexity of power system, better algorithm and programme language is very important . An interior point method based on the perturbed Karush2Kuhn2Tucker (KKT) condition is pre2 sented in this paper , where the method and process for the optimal power flow is treated through the Matlab’s symbolic math toolbox and Mfunction is also presented. Using the symbolic code , it can improve the adaptability of the programme dramatically. The advantage is that , what we need to do is change the model expression. We can make use of the symbolic programme to check our programme while we write the Mfunctions. Using the Mat2 lab , we find the optimal solutions and calculate quickly and efficiently. It has proposed the powerful and unique functions of Matlab in the optimization and calculation for power system. Key words :power system symbolic calculation optimal power flow interior point method)

基于matlab程序对医疗保险费用进行测算，对于医疗保险费用的测算很有帮助(Based on the matlab program to calculate the cost of medical insurance, medical insurance costs for the estimated useful)

Penny Shape Flat Elipsoid case Smatrix for Eshelby Function in MicroMechanics

Inverse discrete cosine transform of an image

简洁但是经典的Root Music DOA 算法,是用多项式求解的方法来寻找DOA(Direction of Arrival )(simple but classic Root Music DOA algorithm, is the polynomial method to find DOA (Direction of Arrival))

power_switching.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_switching.rar,Power electronics field matlab simulation file, has already been verified, the normal operating procedures)