mtalab_F_P

finite element source code using matlab (beam, plates, shells)

主成分分析是把原来多个变量划为少数几个综合指标的一种统计分析方法。 从数学角度来看，这是一种降维处理技术。(Principal component analysis (PCA) is a statistical analysis method that divides a number of variables into a few comprehensive indexes.From a mathematical point of view, this is a kind of dimensionality reduction technology.)

用于将MNIST数据文件转换成bmp图像和txt文件的matlab程序，程序中有详细注释说明，简单易用。已经测试过，正确无误。(Matlab code for translating MNIST data set files to bmp pictures and txt files. It has been proved to be correct through test.)

传染病经典模型si，sis，sir编程以及其图像和实现(Classic model of infectious diseases si, sis, Sir Programming and its image and implementation)

a system for skin color morphology in video that can detect face based on skin color

几个关于利用傅里叶变换进行谐波分析的代码。有详细的变换过程，比较适合想了解原理的初学者。(Several on the use of Fourier transform for harmonic analysis of the code. The transformation process in detail, more suitable for beginners would like to know the principle.)

正弦波脉宽调制技术（SPWM）三相正弦调制波与双极性三角载波设计与实现(Sinusoidal pulse width modulation (SPWM) three-phase sinusoidal modulation wave bipolar triangular carrier Design and Implementation)

Boundary Layer for laminar powerlaw fluid

刘金坤先进PID控制第二版第二章的仿真程序(刘金坤advanced PID control of the second edition of the second chapter of the simulation program)

Matlab 模拟声波传数，包括基带调制、数字上变频、数字下变频、滤波、译码等(Matlab to simulate the sound wave number, including baseband modulation, digital frequency conversion, digital frequency conversion, filtering, decoding, etc)