fast-descent

经典的可编程添加模块的面向对象的有限元程序代码(C++ code for OOFEM based on multi-systems)

描述了雷达sra成像等，用c语言开发 ，包含有fft等程序(Describes the radar imaging Sra, using c language development, contains the procedures fft)

一元线性回归，数值分析方面可参考(one yuan linear regression, numerical analysis can look at the reference)

说明：  多元统计分析—基于R- 数据data，讲解多元统计在R中如何实现，对于多元统计软件入门，是很实用的课程(Multivariate Statistical Analysis Based on R language .about data)

利用matlab针对图像进行马氏距离计算 ,LDPC码的完整的编译码，线性调频脉冲压缩的Matlab程序。( Using matlab to calculate the Mahalanobis distance for the image, Complete codec LDPC code, LFM pulse compression of the Matlab program.)

一种求解低秩矩阵和稀疏矩阵的方法，在图像中的应用广泛。(a inprove method to find low-rank and sparse matrix。)

最小二乘法拟合进行n次多项式拟合，N用来控制拟合的次数，例如N=5时进行4次多项式拟合，还回的是拟合系数(Least squares fit polynomial n times, N is used to fit the number of control, e.g., N = 5 When quartic polynomial fitting, further back are fitting coefficients)

Echo cancellation using NLMS adaptive filter

本程序是基于非等距节点的正交多项式的最小二乘法拟合算法，该算法已经在vc++6.0下调试通过，经多次验证，本算法的拟合误差较小。(This procedure is based on equidistant nodes of non-orthogonal polynomial least squares fit algorithm, which has been in vc++6.0 through debugging, after repeated verification, the algorithm of fitting error is small.)

用C语言编写的Fluent UDF实例，包含Adjust宏，profile宏等八个实例教程，快速上手(The UDF is for computational fluid dynamics software Fluent, it concludes the Profile.c,the Adjust.c)