Curve-and-Surface--

这是一个对时间序列进行短时傅立叶变换的源程序,测试过,好用的.(This is a program for STFT,which had tested.)

说明：  Group delay calculation

三階拉格朗日內差法。使用了Farrow結構，簡化三階多項式係數之運算。(third-order Lagrange interpolation algorithm. use Farrow structure to simplify the coefficients of the polynomial of Lagrange method.)

abaqus drucker-prager UMAT字程序(abaqus drucker-prager UMAT subroutine)

时域有限差分方法程序，网格为非均匀剖分的(FDTD method program, a non-uniform partition of the grid)

简单地实现了一、二、三维的K均值聚类，效果还不错，适合初步学习模式识别的同志们(Simple implementation of one, two, three - dimensional k-means clustering, the effect is not bad, it is suitable for the initial learning pattern recognition comrades)

说明：  一个用于液体受热蒸发的UDF。压缩包中包含fluent网格文件，可直接进行联系。(An UDF used for heated evaporation.)

based classification (SRC) has been widely used for face recognition (FR). SRC first codes a testing sample as a sparse linear combination of all the training samples, and then classifies the testing sample by evaluating which class leads to the minimum representation error. While the importance of sparsity is much emphasized in SRC and many related works, the use of collaborative representation (CR) in SRC is ignored by most literature.

用Monte-Carlo方法解决二维Ising模型(Monte-Carlo method used to solve two-dimensional Ising model)

薄板样条，一种很好的拟合曲线的方法。是最近比较常用的拟合方法。(thin plate spline is so nice fitting method. Features: (1) support arbitrary control points (2) allow regularization (3) estimate the warp parameters from corresponding pairs )