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北京航空航天大学硕士研究生数值分析课的第一次大作业，用幂法反幂法求取矩阵的最大最小特征值(Minimum and maximum eigenvalue of the first graduate of Beijing University of Aeronautics and Astronautics numerical analysis class job, using the power method matrix inverse power law to strike)

说明：  实现快速离散傅里叶变换，即FFT,很有用的程序(Fast discrete Fourier transform, namely, FFT, very useful program)

这是用C++做矩阵求逆和矩阵相乘，可以解简的线性方程。已验证，互相交流~(This is done using C++ matrix inversion and matrix multiplication, linear equations can be solved。)

ansys-初应力-残余应力-焊接残余应力-ansys温度场(ansys-initial stress)

时域有限差分 2维 完全匹配层 犹他州大学(fdtd method 2D pml perfect mached layed www.ece.utah.edu)

This FDTD 2D simulation based on Dennis Sullivan book s. Wave propagation in vacuum background using PML boundary conditions.

Converts RGB Image to LAB

matlab Newmark法 用于求解二阶常系数微分方程组(matlab Newmark method for solving second-order differential equations with constant coefficients)

这是一个对于非线性PA设计的DPD程序，有很好的效果，对初学者很有帮助( This is a non-linear PA designed for DPD program, have a good effect, very helpful for beginners)

TGM.m \传统的Galerkin方法 MD.m \时滞惯性流形方法 brownian.m \演示布朗运动 randomwalk.m \ 演示随机游走 tumor.m \ 演示tumor演化(TGM.m traditional Galerkin method MD.m Delays inertial manifold method brownian.m demo Brownian motion randomwalk.m demo random walk tumor.m demo tumor evolution)