UMAT beginning

nelder-mead algorithm for unconstrained optimization simulation in c programming language

sorting different kind of arrays

说明：  可以进行平面拟合，基于matlab语言，简单易懂(It can be used for plane fitting. It is simple and easy to understand based on MATLAB language.)

计算牛顿和拉格朗日插值方法,用户输入插值结点(calculated Newton and Lagrange interpolation methods, user input interpolation nodes)

测绘程序，计算测边网各点坐标的评查程序，值得借鉴(Mapping program to calculate the coordinates of each point measured the side-netting of assessment investigative procedures, worth learning)

一维欧拉方程计算，集合了Lax-Friedrichs，Richtmyer，MacCormack，Steger-Warming，Van Leer，AUSM，Zha-Bilgen，Godunov，Osher，Roe，Rusanov，HLL(HLLE)，HLLL，AUFS方法(One dimensional Euler equation, including Lax-Friedrichs, Richtmyer, MacCormack, Steger-Warming, Van Leer, AUSM, Zha-Bilgen, Godunov, Osher, Ro, Rusanov, HLL(HLLE), HLLL, AUFS)

使用四阶Runge-Kutta算法解决两个一阶微分方程组，并输出到文件。(solve a two cupled first order differential equations)

完成前台阶问题的计算，利用的AUSMPW格式，算法结构较为简单，所以文字说明较少(Completed on the front steps of the calculation, use of AUSMPW format, the algorithm structure is relatively simple, so less text)

book of document including test

非负矩阵分解的matlab代码，内容全！希望对大家有用(Non-negative Matrix Factorization of matlab code, the contents of the whole! Hope useful for everyone)