3D-KE

fft傅里叶快速变化程序，里面说的很清楚，很使用。(FFT Fourier rapid change program, which made it very clear, is to use. )

说明：  abaqus vumat 子程序入门 UMAT FOR ABAQUS/STANDARD INCORPORATING ELASTIC BEHAVIOUR FOR PLANE STRAIN AND AXI-SYMMETRIC ELEMENTS.(introduction to abaqus vumat subroutine)

船舶荷载计算程序，可用于码头设计中船舶荷载的计算。(Ship load calculation procedures, can be used for ship loading terminal design calculations.)

完成采样空间的采样，适合于响应面，近似模型之前的采样工作，文件夹中有具体介绍(The sampling space is completed. It is suitable for the response surface and the sampling work before the approximation of the model. The folders are introduced in detail.)

求两个多项式的最大公约式，多项式按照如下格式输入，如果输入 3 //次数 1 2 3 4 //系数 则表示 1+2x+3x^2+4x^3(For two of the largest convention-type polynomials, polynomial input in accordance with the following format, if you type 3// number 1 2 3 4// coefficient express 1+ 2x+ 3x ^ 2+ 4x ^ 3)

说明：  此代码包括牛顿法和梯度下降法的实现过程，最优化以及算法中常见的问题解决方式(This code includes the process of Newton method and gradient descent method)

说明：  粒子滤波算法的时间分析程序，matlab实现(Particle filter time analysis program, matlab achieve)

一些有用的fem用来matlab进行有限元分析编程的源代码(Some useful fem used to matlab for finite element analysis of programming source code)

说明：  用欧几里得算法求两个自然数的最大公约数通过c语言实现(Using Euclidean Algorithms to Find the Maximum Common Number of Two Natural NumbersRealization by C Language)

求给定矩阵的逆矩阵和行列式值。已经经过测试，与matlab做了对比，计算结果可靠(Seeking a given matrix inverse matrix and determinant value. Has been tested with Matlab contrast, reliable calculation results)