work

There is an algorithm that converts RGB Color to YCbCr

格子玻尔兹曼 圆柱绕流 Python编写(lattice boltzmann flow around a cylinder, using Python. very fast because of numpy library)

说明：  通过matlab实现抽样检测功能，具体通过蒙特塔罗算法依照概率分布计算指定变量的分布规律，是初学者的好案例(The sampling detection function is realized by matlab, and the distribution rule of specified variables is calculated by Montreal algorithm according to probability distribution.)

有限元法求解泊松方程，用matlab编写的计算程序(Finite element method for solving Poisson)

研究生动力学课程，计算多体动力学课程， 学习起来有点难度，如果有兴趣就看看吧(Graduate dynamics course)

说明：  Neville插值算法，xa为自变量数组，xy为因变量数组；x为待插值的自变量(Neville interpolation algorithm, xa array as variables, xy array as the dependent variable x for the independent variables to be interpolated)

早期的圆柱绕流程序，用fortran语言编写，用来了解早期绕流流动的发展(flow around the cylinder)

％ SSOR预处理的共轭梯度法求解方程Ax=b ％ 输入参数说明 ％ A 正定矩阵[n*n] ％ b 右边向量 ％ omega SSOR预处理参数(0--2) ％ Times 迭代次数 ％ errtol 给定误差终止条件 ％ ％输出参数 ％ NewX 方程Ax=b的x近似解 ％ avgerr 求解的当前平均绝对误差( SSOR preconditioning conjugate gradient method for solving equations Ax = b the input parameter descriptions A positive definite matrix [n* n] b right side vector omega SSOR preconditioning parameters (0- 2) Times iterations errtol termination of a given error condition NewX output parameter equation Ax = b of x approximate solution to solve the current avgerr average absolute error)

基于自适应在线遗传算法整定的PID控制,每个采样时间分别对PD参数进行整定(based on adaptive online genetic algorithm tuning PID control, sampling each time the PD parameters tuning)

短时傅立叶变换及其反变换---绝对可运行！(Short-time Fourier transform and its inverse transform- absolutely can run!)