xiankuan

FFT快速傅里叶变换 采用基4 fft实现的c语言版(FFT Fast Fourier Transform implemented using the base 4 fft c language version)

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)

说明：  此程序为满足条码不能带IOQ三位字母的计算方法(Bar code can not be three letters with the calculation of IOQ)

最新版的oofem 可以自己加入一些材料模型 版本更新速度也算快(latest version of oofem )

圆面上的点到圆心的距离 圆面上的点到圆心的距离 圆面上的点到圆心的距离 圆面上的点到圆心的距离(Round surface of the distance from point to circle center point of the surface of the distance to the center circle to the center point of the surface of the distance from the surface point to the center circle distance)

基二、基四、基八 FFT变化源代码，有详细注解(Second base, the base four or eight FFT-based changes in the source code, detailed comments)

有限元计算基本程序，为毕业论文时编写的局部渗流计算程序。(Finite element method the basic procedures for the thesis prepared by local seepage calculation procedures.)

通过C++头文件实现的有限元形状函数计算程序(finite element shape function)

这是一段导线找形的命令流，可用于ansys有限元分析(This is a piece of wire to find the form of order flow, can be used for finite element analysis ansys)

采用数值分析课程中的插值逼近以及曲面拟合方法来估算复杂的函数表达式。(Interpolation approximations and surface fitting methods are used in the numerical analysis course to estimate complex function expressions.)