Sparse-matrix-algorithm-

计算流体力学入门第九章代码 simple 算法(the code for the problem introduced in the book computational fluid dynamics chapter 9 simple algorithm)

sorting different kind of arrays

多项式拟合，最小二乘法，c++版本实现，运行环境vc6(Polynomial fitting)

计算在不同湿度下，不同频率下，大气的衰减系数。(Calculation under different humidity, different frequencies, atmospheric attenuation coefficient.)

说明：  九维的卡尔曼滤波跟踪算法，包括xyz三方向和各方向的位置，速度，加速度。(Nine-dimensional Kalman filter tracking algorithm, including the three xyz direction and the location of the direction, velocity, acceleration.)

说明：  牛顿迭代法的matlab代码，数值分析中重要的一个算法(Matlab code of Newton iterative method)

说明：  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：  最速下降法就是梯度下降法,可以用于求解最小二乘问题(线性和非线性都可以)。可以说是求解机器算法的最古老、最经典的模型，另一种常用的方法是最小二乘法。(The steepest descent method is the gradient descent method, which can be used to solve the least squares problem (both linear and non-linear). It can be said that it is the oldest and most classical model for solving machine algorithm. Another commonly used method is the least square method.)

包括了一个二维的方柱FDTD散射程序，入射波为TM模式，方柱无限长，等效为二维问题(Includes a two-dimensional square cylinder scattering FDTD procedures, incident for TM mode, infinite square cylinder, equivalent to two-dimensional problem)

用于拓展fluent磨损模型的UDF，采用tabakoff经验公式描述磨损量。(a udf to optimize erosion model in Fluent)