fem

说明：  遗传算法用来求解带容量的车辆路径问题，用c++完成的代码(The genetic algorithm is used to solve the vehicle routing problem with capacity. The code is completed by c++.)

利用分步傅立叶积分法，求解薛定谔方程，可以计算光纤中色散与SPM(This file solves the nonlinear Schrodinger equation for propagation in an optical fiber using the split-step Fourier method described )

abaqus中扩展有限元（UEL）计算疲劳断裂(extended finite element method (uel)for fracture problems within the finite element software ABAQUS)

计算流体力学软件FLUENT计算空气龄的udf文件(FLUENT CFD software udf file to calculate the air age )

计算方法：主要是高斯消去法的C语言算法实现(Calculation method: Gaussian elimination)

求解非线性方程组 的同伦曲线法(Solving nonlinear equations homotopy curve method)

多目标粒子群的matlab程序，文中设置了两个目标，f1和f2，采用加权求解的方式(more goals in Matlab PSO procedures, the text set up two goals, f1 and f2. using the weighted solution!)

LU decomposition program.

瑞利分布的随机变量，标准高斯分布的随机变量，莱斯分布的随机变量(Random Variables of Rayleigh Distribution, Standard Gauss Distribution and Rice Distribution)

说明：  复合材料层内基于断裂韧性退化的VUMAT子程序(VUMAT subroutine based on fracture toughness degradation in composite laminates)