CUM4EST

编写一个使用KMP算法的字符串匹配程序。 使用方法：字符串匹配.exe -f xxx.txt -s xxx -f 指定要查找的文件 -s 指定要查找的字符串(Writing a string matching algorithm using KMP program. How to use: string matching exe-f xxx.txt-s xxx-f to specify the file you want to find-s to specify the search string)

四阶龙格库塔算法，用来求解二阶偏微分方程，在转子系统的动力学方程数值求解中普遍应用(Runge Kutta algorithm)

一些简单的UDF文件，实现流场中梯度和某一点压力的检测提取(Some UDF profiles)

迭代最小二乘法,反演中应用极广泛，非常经典(Iterative least-squares method，An extremely wide range of inversion, very classic)

最速下降法就是梯度下降法,可以用于求解最小二乘问题(线性和非线性都可以)。可以说是求解机器算法的最古老、最经典的模型，另一种常用的方法是最小二乘法。(The steepest descent method is the gradient descent method, which can be used to solve the least squares problem (both linear and non-linear). It can be said that it is the oldest and most classical model for solving machine algorithm. Another commonly used method is the least square method.)

On the support vector machine (SVM) is a relatively quick calculation method, can improve the calculation speed

这个程序用来计算四阶累计量，程序中有详细说明(This procedure used to calculate the fourth-order cumulant, the program in detail)

用QR 法方程组合SVD分解进行最小二乘解方程组，并比较三种方法的稳定性以及准确性(Combined with the QR equation SVD decomposition least squares solution of equations, and compare the stability and accuracy of three methods)

己知一些离散的点，使用matlab利用最小二乘法拟合(Had a number of discrete points, with linear least squares fitting)

abaqus三维8节点实体单元Fortran子程序，里面有详细的注释，有单元开发兴趣的同学可以下载学习(The fortran subroutine of the 8 node solid element of ABAQUS, with detailed comments in the unit development interest students can download learning)