crackprop_modeI_lefm_xfem_cpe4

计算bessel函数的值。在调压室的结构应力计算时可用到。(Calculate bessel function value. Stress in the surge tank can be calculated to.)

线接触滑块润滑，基于有限差分法，采用的是中间差分的方法，求解油膜厚度(Line contact slider lubrication, based on the finite difference method, using an intermediate difference method for solving film thickness)

求解O-S方程特征值，可以适用于多种条件下的O-S方程特征值计算(To solving OS Equation characteristic value, can be applied to a variety of conditions OS equation eigenvalue calculation)

关于simple算法，希望站长能够让小弟加入这个学习的行列。(on simple algorithms, hoping to let the younger station to join the ranks of the study.)

三次样条插值（简称Spline插值）是通过一系列形值点的一条光滑曲线，数学上通过求解三弯矩方程组得出曲线函数组的过程。本函数中采用第一类边界值(Cubic spline interpolation (referred Spline interpolation) through a series of key points of a smooth curve, mathematically by solving the three-moment equations derived curve function group process. This function uses the first boundary value)

一个简单的傅立叶带亮度描绘子提取图像的形状特征程序(A simple Fourier descriptor with the brightness of the image shape feature extraction procedures)

用MRT-LBM计算顶盖驱动流的程序，比LBGK方法更加稳定。(Codes for lid-driven flow with MRT-LBM, which is more stable than LBGK.)

地球物理偏移相关程序包，能实现时间偏移、深度偏移、及逆时偏移等，编写语言：Matlab。(Geophysical migration coding package, time migration, depth migration, reverse time migration, the writing language: Matlab.)

T矩阵方法的FORTRAN环境下的程序，希望对大家有帮助！(T matrix method program FORTRAN environment, we want to help!)

提供函数能进行1维2维的FFT，输入输出的序列长度应为2的整数次方倍(Provides functions can be one-dimensional two-dimensional FFT, sequence length input and output should be an integer power of 2 times)