HengXiang1

对经过分块算法隐藏的图像，进行信息提取，此算法适用于二值图像(After a block algorithm for the hidden images, the information extraction, this method is applicable to binary images)

实现霍夫变换的功能程序， function [rodetect,tetadetect,Accumulator] = houghtrans(imb,rostep,tetastep,thresh)(function [rodetect,tetadetect,Accumulator] = houghtrans(imb,rostep,tetastep,thresh))

triphase pulse width modulation

美国作者James写的编程之道全本，爱好编程的朋友可以看下(how to program)

说明：  通过输入汽车基本参数，可绘制出汽车前后制动器制动力分配曲线。(By entering basic parameters of the car, the car can be drawn around the braking force distribution curve.)

Matlab绘图系列之高级绘图，可以画特殊的图像(Matlab Mapping Series High drawings, special images can be painted)

现有一个信号：x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的： 低通滤波器，滤除cos(2*π*n/3) 的成分，即想保留的成分为1+cos(π*n/4) 高通滤波器，滤除1+cos(π*n/4) 的成分，即想保留的成分为cos(2*π*n/3) 带通滤波器，滤除1+cos(2*π*n/3) 的成分，即想保留的成分为cos(π*n/4) 带阻滤波器，滤除cos(π*n/4) 的成分，即想保留的成分为1+cos(2*π*n/3) 1. 用MATLAB命令butterord求除滤波器的阶数,用命令butter设计各滤波器；画出滤波器幅度和相频相应 取各滤波器的系统函数H(z)。 (an existing signal : x (n) = a cos (* n/4) cos (2** n/3) design and digital filter to achieve the following objectives : low-pass filter, filter cos (2** n/3) the ingredients that want to retain an element of a cos (* n/4) high-pass filter, a filter cos (* n/4) components, namely to retain the element of cos (2** n/3) band-pass filter , a filter cos (2** n/3) components, namely to retain the element of cos (* n/4) band stop filter, the filter cos (* n/4) components, namely to retain the ingredients for a cos ( 2** n/3) 1. MATLAB order butterord except for the band Filter, using the order of the filter design butter; paint Filter magnitude and phase frequency of the corresponding filter system function H (z).)

有限元稀疏矩阵的保存和提取，基于ANSYS提取稀疏矩阵后在matlab中的重新整理。(Preservation and extraction of finite element sparse matrix)

各种数据拟合的程序，对初学者很有用。可以做各种图(A variety of data fitting procedure, useful for beginners.)

convert temperature C-->F, F-->C