index

用matlab实现图像的各种变换，旋转，大小变换，滤波平滑。(Matlab implementation using a variety of image transformation, rotation, size, transform, smoothing filter.)

力矢量算法实现的画图程序，编写环境matlab， 2D(force-oriented graph drawing algrithm, 2D, computer science applied)

使用matlab程序实现快速傅里叶FFT变换及频谱分析的程序代码(the code for FFT with Matlab)

说明：  卫星二体轨道动力学模型仿真，用于卫星轨道模拟，航天领域(Satellite two-body orbit dynamics model simulation)

我们的目的是将一个分数拆分成若干个分子是1分母是正整数的分数之和的形式。例如2/3可以拆分成1/2+1/6的形式。这里不考虑顺序，比如1/6+1/2和1/2+1/6相同。 输入p, q, a, n, 其中p/q为分数，对这个分数进行拆分，要求拆分的分数个数不能多于n个，所有分母的乘积不能大于a。求有多少种拆分方法? 输入：最多200组数据。在每行中都有四个数分别表示p, q, a, n，之间以空格隔开，并且满足p,q<=800，a<=12000，n<=7，最后以四个0做为输入的结束。 输入示例: 2 3 120 3 2 3 300 3 0 0 0 0 输出示例: 4 7 (Our aim is to split a fraction into a number of elements is a denominator is a positive integer fraction of the sum of form. For example, 2/3 can be split into 1/2+1/6 form. Not considered here, the order, such as 1/6+1/2 and 1/2+1/6 of the same. Input p, q, a, n, where p/q as a fraction of this split scores require no more than the number of split points n-all the product of the denominator can not be larger than a. How many kinds of demand split method? Input: Up to 200 sets of data. In each line has four numbers indicate the p, q, a, n, separated by a space between, and meet the p, q < = 800, a < = 12000, n < = 7, the end, four 0 as the input end. Input Example: 2,312,032,330,030,000 sample output: 47)

非高斯滤波程序，主要为非线性非高斯结构识别程序(non-Gaussian filtering procedures, mainly for non-Gaussian nonlinear structure identification procedures)

matlab编写的图像边缘直方图提取程序，最后结果包含了归一化边缘梯度直方图（矩阵第-行），相应量化区间均值（矩阵第二行），相应量化区间均方差（第三行），具体见从程序，有注释(write histogram matlab image edge extraction procedures, the final result contains a normalized edge gradient histogram (Matrix- line), corresponding quantization interval mean (matrix second row), corresponding quantization interval mean square error (third row), see in particular from the program, there is a comment)

inducation motor simulation

学校出的数学建模国际赛模拟题，要求对森林火灾进行仿真模拟，以下是我编的仿真程序，它绘制了很好的结果图。(Mathematical modeling of school out of international competitions simulation questions require simulation of forest fires, the following is my series of the simulation program, it draws a good result map.)

说明：  《MATLAB 7.0编程基础基础》源程序，适合初学者使用，第4章(&quot MATLAB 7.0 programming foundation base&quot source, suitable for beginners, Chapter 4)