scalefree

spring document very mush

This program evaluates the analytical first and second (if approx=2) derivatives of f numerically. The parameters and steady state values of the arguments of the function f are assumed to be in the workspace

粗糙集属性约简代码，可以运行，可以运用到不同场合，可作为参考(Rough set attribute reduction code can run, can be applied to different occasions, can be used as reference)

本程序的功能是用支路追加法求阻抗矩阵,再用三相短路计算短路电流和电压(The function of this procedure is to use branch supplementary method for impedance matrix, with a three phase short circuit calculation of short circuit current and voltage)

gps与matlab仿真，模拟卫星的运动,后续程序正在写。(gps with matlab simulation, motion simulation of the satellite, the follow-up program is being written.)

QAM Matlab程序，误码率的坐标，星座图等在图中已经显示出来(QAM Matlab procedure, the coordinates of BER, constellation diagram, etc. At chart has been displayed)

二级倒立摆系统采用极点配置的方法控制，系统达到平衡。(Double inverted pendulum control using pole placement method, the system in balance.)

三相电机的matlab仿真,对学习matlab simulink有很大的帮助.(Matlab simulation of three-phase motor)

16QAM调制解调，不用系统自带命令，完全按照调制解调系统进行。(16QAM modulation and demodulation, without the system comes with command, in full accordance with modulation and demodulation system.)

CA码生成程序。可以产生32颗卫星的。并载波，采样(CA key generation procedures. Can produce 32 satellites. And the carrier, sampling)