matlab编写的流体计算和传热程序

分数傅里叶变换的离散算法的matlab程序-Discrete fractional Fourier transform algorithm matlab program

案例玄虚名额、古筝、摇滚和流行四类不同音乐，用BP神经网络实现对四类音乐的有效分类。适合初学者学习，具有很高的借鉴作用。

资源描述此代码适合C语言的初学者，可以帮助初学者在学习理论知识的同时不断实践完善自己的动手能力，并且为后续的C语言学习打下坚实的基础，希望大家多多分享一些有用的代码，别搞那些杂碎的东西，毫无用处

im=imread("e:301clip301.tif"); im=rgb2gray(im);              im=double(im); im = imresize( im, 0.5 );    % 为了减少程序运行时间，将图像变小为原来大小的1/2 figure(1);imshow(uint8(im)); [nrow,ncol]=size(im); J= gauss( im,3,2 );          % 为了计算函数g，先对图像作guassian预平滑 %%- 计算图像梯度模值 J_x = (J(:,[2:ncol ncol])-J(:,[1 1:ncol-1]))/2; J_y = (J([2:nrow nrow],:)-J([1 1:nrow-1],:))/2;       请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

BDF法解分数阶微分方程,分数阶导数定义系数通过fourier法计算-BDF method of fractional differential equations, fractional derivative definition coefficient calculated by fourier

该程序主要包括计算输出值、感知器学习算法（权值的调整）

可计算生成巴特沃斯、切比雪夫原型滤波器，转换为数字滤波器，并可直接进行滤波-Computable generating Butterworth, Chebyshev prototype filter, is converted to digital filters, can be directly filtered

CLM集合卡曼滤波数据同化算法，是转的别人的一个程序，很好的程序。做同化的同仁可以-Application of the case, a Chinese-based RC500 chip LCD attendance control procedures, and RS232 computer interface, the program is characterized by all the attendance data is stored in the computer, read and returned to the CPU to deal with liquid crystal display.

The cart with an inverted pendulum, shown below, is "bumped" with an impulse force, F. Determine the dynamic equations of motion for the system, and lin earize about the pendulum s angle, theta = Pi (in other words, assume that p endulum does not move more than a few degrees away from the vertical, chosen to be at an angle of Pi). Find a controller to satisfy all of the design re quirements given below. -The cart with an inverted pendulum, shown below, is "bumped" with an impulse force, F. Determine the dynamic equations of motion for the system, and lin earize about the pendulum s angle, theta = Pi (in other words, assume that p endulum does not move more than a few degrees away from the vertical, chosen to be at an angle of Pi). Find a controller to satisfy all of the design re quirements given below.

基于形态学开闭操作的道路提取，首先基于图像分割，再利用形态学的开闭操作进行提取。