文档介绍：连续系统s域分析1、num=input('num[num1,num2,..]=');den=input('den[den1,den2,..]=');=num;=den;guidata(hObject,handles);guidata(hObject,handles);2、3、axes();cla;axes();cla;4、close;main;5、symst;f=input('f(t)=');F=laplace(f)6、symss;F=input('F(s)=');f=ilaplace(F)7、A=;B=;axes();[z,p]=tf2zp(B,A)zplane(z,p)guidata(hObject,handles);8、b=;a=;[z,p]=tf2zp(b,a);[h,w]=freqs(b,a);h1=abs(h);h2=angle(h);_axes();plot(w,h1);grid,xlabel('½ÇƵÂÊ(W)');ylabel('·ù¶È');title('H(jw)µÄ·ùƵÌØÐÔ');axes();plot(w,h2*180/pi);grid,xlabel('½ÇƵÂÊ(w)');ylabel('Ïàλ(¶È)');title('H(jw)µÄÏàƵ');functionvarargout=lxxtplxy(varargin)%LXXTPLXYM-%LXXTPLXY,byitself,createsanewLXXTPLXYorraisestheexisting%singleton*.%%H=LXXTPLXYreturnsthehandletoanewLXXTPLXYorthehandleto%theexistingsingleton*.%%LXXTPLXY('CALLBACK',hObject,eventData,handles,...)callsthelocal%.%%LXXTPLXY('Property','Value',...)createsanewLXXTPLXYorraisesthe%existingsingleton*.Startingfromtheleft,propertyvaluepairsare%%unrecognizedpropertynameorinvalidvaluemakespropertyapplication%.%%*SeeGUIOptionsonGUIDE'"GUIallowsonlyone%instancetorun(singleton)".%%Seealso:GUIDE,GUIDATA,GUI