MATLAB

CHORDSOL Chord method code for scalar equations. This code terminates on small relative-absolute errors, function [X, HIST] = CHORDSOL(X, F, TOLA, TOLR) Inputs: X = initial iterate F = function TOLA = absolute error tolerance TOLR = relative error tolerance Output: x=approximate result

Canny edge detection. It is an image processing algorithm for edg detection

说明：  四点高斯积分公式在边界元分析法离散中的计算(Four the Gauss integral formula in boundary element analysis method in the calculation of discrete)

说明：  对于一个存储了五门课成绩的txt文本，进行数据读取、数据分离、画出变化曲线。(For a TXT text that stores the scores of five courses, data reading, data separation and drawing change curve are carried out)

cordic算法实现特征值分解，非常实用，代码可以作为参考(cordic eigenvalue decomposition algorithm, very practical, code can be used as a reference)

code dijkstra in matlab

数值积分工具箱 这些都是通用集成例程： quadg.m - 高Quad和QUAD8的准确性更换（1-D）quad2dg.m - 集成在一个矩形区域的2-Dquad2dggen.m - 比一般地区一体化的2-D- 超过ND超矩形区域quadndg.m ND集成(Numerical integration toolbox these are universal integrated routines: Quadg.m- Quad and QUAD8(1-D ) quad2dg.m accuracy replacement- integrated in a rectangular area of the2-Dquad2dggen.m than in the general area in the integration of2-D over ND super rectangle quadndg.m ND integration)

输入相关参数，便可求得函数的二阶累积量，使得复杂计算过程得到避免(Input parameters, the function of the second order cumulant can be obtained, making complicated calculation is avoided )

park变换与park反变换，引入三相正弦输入，在模拟示波器端查看波形，能够得到期望的效果(park and Inv_park)

分别在2幅灰度图像中加入一定量的高斯噪声和椒盐噪声，噪声强度自定。然后采用3×3的均值滤波器和3×3中值滤波器分别对噪声图像进行处理，给出两种处理方法的峰值信噪比(PSNR)；仿效“中值滤波”的方法，对原图像分别进行“极大值滤波”和“极小值滤波”，对所形成的图像给出说明。(Two gray-scale images a certain amount of Gaussian noise and salt and pepper noise , noise intensity since .)