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this file is simulink of DC motor and PID controller

说明：  MATLAB PHOTO EDITOR by omer

对称阵子天线的方向函数与方位角无关，及方向图是以振子轴线为基准的旋转对称图形，这(Symmetry time around antenna azimuth direction has nothing to do with the function, and the pattern is rotational symmetry axis vibrator graphics benchmark, which)

此程序为simulink仿真程序，是对于川渝电网中珞璜火力发电机组进行的单机无穷大系统的仿真，其中发电机控制部分为实际运行中数据。(This procedure for the Simulink simulation program, is a simulation of a single machine infinite bus system for the Sichuan Chongqing Power Grid Luohuang thermal power generating units of the generator, control part is data in practical operation.)

由1790-1980年间美国每隔十年的人口记录表为基础进行分析。(Exponential growth model of population )

摩尔应力圆 根据给定的正应力和切应力画出摩尔应力圆 程序在一个数值的计算上可能有BUG 但一般计算时没有问题(Mohr stress circle to draw molar stress circle program according to a given normal stress and shear stress in the calculation of a value may have BUG, ​ ​ but there is no problem in the general calculation)

microturbine in matlab

一个 ＧＡ小程序，有说明．相关见程序解(a small procedure is described. See related procedures solutions.)

通过按钮的回调函数将txt文档中的数据读到listbox1中的函数(The data read txt document listbox1 function button callback function)

matlba的英文讲义，对初学者有很大帮助(It has a lot of benefits for learners)