chirped_grating_analytical_solution

实现矩阵的四则运算，并能计算矩阵的特征值和特征向量(Four arithmetic operations of matrices are realized, and eigenvalues and eigenvectors of matrices can be calculated.)

王勖成的《有限单元法》资料包，包括pdf书籍、课后习题答案以及有限元分析教学程序FEATP源码！(The package of finite element method by Wang Xucheng, including pdf books, after-school exercise answers and finite element analysis the teaching programFEATP source!)

用matlab自编的的变步长LMS滤波的算法的程序，希望对大家有用(Matlab own use of variable step size LMS algorithm for filtering procedure, in the hope that useful to everybody)

ansys非线性各向同性，非线性随动硬化(ANSYS nonlinear isotropic, linear kinematic hardening)

几何绕射理论，是高频解决电磁场问题的方法，本书很具有代表性(GTD is a high-frequency electromagnetic fields to solve the problem, this book is a representative)

用ANSYS对梁进行优化设计，分为优化分析文件，优化控制文件，求解方法几个方面。(Using ANSYS to optimize the design of the beam, divided into optimization analysis files, optimize the control file, the method for solving aspects.)

说明：  matlab改进的网格算法，work3为主程序(Matlab improve grid algorithm, based procedures work3)

严格的衍射积分计算，实现光栅结构透过反射场2维分布的严格解计算，利用散射积分对耦合模方程进行严格计算解 衍射，光栅，场，二维，积分，散射矩阵，耦合模理论(Strict calculation of the diffraction integral, the grating structure is realized through the rigorous solution of the 2 dimensional distribution of the reflection field. Diffraction, grating, field, two-dimensional, integral, scattering matrix, coupled mode theory)

用栈的思想实现的简易计算器，可直接输入表达式，然后自动计算结果(Ideology with a stack of simple calculator, you can directly enter an expression, then automatically calculated)

处理任意两点间多条公交、地铁线路的到达问题此，改程序将一二问综合在一起，方便精简，运行速度快(Treatment between any two many bus, subway lines to reach this issue, change the program integrated with the twelve asked to facilitate streamlined, fast)