shanchen

附件中是我用Fortran写的lorenz混沌吸引子的lyapunov指数谱产生程序。包括三部分内容：如何产生lorenz吸引子，详细注释，如何计算lyapunov指数谱。 需要的话也可以单独提取子程序中的四阶龙格库塔算法。 希望有所用。(Annex is written in Fortran I used the Lorenz chaotic attractor of lyapunov index spectrum generation process. Includes three parts: how to generate Lorenz attractor, detailed notes, how to calculate the spectrum lyapunov index. If necessary, extraction can also be a separate subroutine in the fourth-order Runge-Kutta algorithm. Would like to see used.)

K均值算法实现二维点的聚类，可以手动选择分的类别数(K mean algorithm for clustering two dimensional points)

说明：  平面问题的有限元基础，大家可以参考一下学习学习(The finite element foundation of the plane problem, you can refer to it)

详细介绍了移动最小二乘法的原理 应用和特点 并且给最后给出了曲线拟合和空间散 出了使用移动最小二乘法进行曲线曲面拟合的程序设计流程(Moving least squares method described in detail the principles and characteristics of the application and to give the final curve fitting and shed space using moving least squares method curve and surface fitting procedure design process)

线性规划中的单纯形法的c实现，代码有测试类，(Simplex method for linear programming)

说明：  自适应步长龙格库塔法求解常微分方程，main.c内容根据自己需要改变，待求解方程为derivs，需要使用者自己编写(Adaptive step size Runge Curta Fa for solving ordinary differential equations)

变分模态分解的python版本，个人根据MATLAB版本译制而成(Python version of variational mode decomposition)

细梁的振动，无量纲振动控制方程关于梁的动力响应(Beam power with applications from mechanical aerospace electrical and civil engineering free vibration nondimendional frequency coefficients on the dynamic behaviour of the beam)

应用FORTRAN语言编写的通过方向应力张量与应力余弦张量求解主应力矩阵(Application FORTRAN language through direction cosine stress tensor and the stress tensor matrix solving the principal stress)

此程序是用多重散射理论计算二维声子晶体的结构的Fortran代码。(This program is multi-dimensional phonon scattering calculated crystal structure Fortran code.)