E_plot

THIS IS SINGLE MACHINE INFINITE BUS SYSTEM

matlab实例clearN=100f=zeros(50,50) f(15:35,23:28)=1 figure(1)imshow(f, notruesize )F=fft2(f,N,N) F2=fftshift(abs(F)) figure(2)x=1:N y=1:N mesh(x,y,F2(x,y)) colormap(gray) colorbar(matlab)

Simply calculus for exhaust gases, altitude coast phase time, diameters for a required parachutes from a rocket.

说明：  用函数hough检测直线,程序很好，可以调里面参数。效果很好(Use function houhg to check the line)

digital to analog converter

100个实用的MATLAB程序，对初学MATLAB者很有用(100 useful MATLAB programs, MATLAB are very useful for beginners)

数学软件Matlab 学习资料（大学课件）(The Matlab software learning materials (courseware))

matlab在数学建模中的某些方法，和一些实例。(matlab in some of the methods in mathematical modeling, and some examples.)

matlab C编程函数速查手册，很有参考价值(matlab C Programming Functions Quick Reference, great reference value)

一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度 方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度）） 初始条件：t=0时水等于100度 边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1） 2.杯壁绝热，第二类边界条件 图形显示格式,取过圆柱轴的截面温度变化将其做成动画. (A cup of boiling water for cooling, the cylinder model, the bottom radius of 0.05m, the high-0.1m, an ambient temperature of 20 degrees, the initial water temperature of 100 degrees is four-dimensional transport equation equation (constant a ^ 2 = k/(c* p), k is the thermal conductivity coefficient of 0.6006 J/(m* s* degrees)) initial conditions: t = 0 when the water equivalent to 100 degrees boundary conditions: 1. up and down the wall are free cooling, the third boundary condition, the ambient temperature maintained at 20 degrees (H = k/h, h check one) 2.杯壁insulation, the second boundary condition graphical display format, check-off section of cylindrical shaft temperature change to make animation.)