lianxu-me

地球固连坐标系与地球惯性坐标系的转换矩阵程序，考虑的章动、岁差、自转等。(Earth' s solid even coordinate system with the Earth inertial coordinate system transformation matrix program, consider the nutation, precession, rotation, etc..)

一个在fluent udf中使用Compute_Force_and_Moment函数计算力的算例(An Example of Compute_Force_and_Moment Function in Fluent UDF)

得到一个人二值矩阵后，计算一个二值矩阵的聚类系数，来表示矩阵的特征(when you have a 0-1 matrix ,you can calculate its clusterig through my program)

TDMA solver for tridiagonal matrix

根据分好的单元，进行有限元分析。计算每个单元中四个高斯点的应力，应变，主应力以及位移。(According to sub-good unit, finite element analysis. Calculated for each unit in the four Gauss point stress, strain, principal stresses and displacements.)

fluent关于蒸发相变的很全的C程序，有详细的注释，对于相关专业的人很重要(fluent the evaporation phase transition is full C program, detailed notes, very important for the people of the relevant professional)

用于最小二乘支持向量机的名为"留一法",可用于支持向量机超参数的确定.(for least squares support vector machine called "a stay", could be used to support vector machine-determined parameters.)

FFT with fix point 2*N

汽车课设货车Matlab驱动力图程序，分析了该信号的时域、频域、倒谱，循环谱等,光纤陀螺输出误差的allan方差分析。( Car class-based truck driver trying to Matlab program, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. allan FOG output error variance analysis.)

说明：  一般的最小二乘通常是一次拿到全部的数据， 对所有数据进行统一优化计算得到模型系数。递推最小二乘是以一种递推的方式计算最小二乘，每次使用最新的测量值，来不断更新模型系数。(General least squares usually get all the data at one time, and perform unified optimization calculations on all the data to get the model coefficients. Recursive least squares is to calculate the least squares in a recursive way, each time the latest measured value is used to continuously update the model coefficients.)