文档介绍：实例1:三角函数曲线(1)functionshiliOlhO=figure('toolbar',,none,,...'positional9856350300J,...'name',实例01');h1=axcs('t',hO,...•visible'/off);x=-pi::pi;y=sin(x);plot(x,y);xlabelC自变量X);ylabelC®数值Y*);title('SIN()函数曲线J;gridon实例2:三角函数曲线(2)functionshili02hO=figure('toolbar',,none,,...•position*,[200 150450350J,...Fame;'实例02');x=-pi::pi;y=sin(x)+cos(x);plot(x,y/-*r71inewidth\1);gridonxlabel('自变量X);ylabelC®数值Y');titleC三角函数J;实例3:图形的叠加functionshili03hO=figure(,toolbar\,none\...•position*,[200 150450350],...'name'/实例03');x=-pi::pi;yl=sin(x);y2=cos(x);plot(x,yl,…A,•••x,y2,..・L-ogf);gridonxlabel('自变量X');ylabelC函数值Y');title('三角函数');实例4:双y轴图形的绘制functionshili04h0=figure(,toolbar'/none,,...•position*,[200 150450250J,...'name','实例04');x=0:900;a=1000;b=;yl=2*x;y2=cos(b*x);[haxcs,hlinc1,hlinc2]=plotyy(x,y1,x,y2,'scmilogy;'plot');axcs(haxcs(l))ylabel('semilogplot');axes(haxes(2))ylabel('linearplot');实例5:单个轴窗口显示多个图形functionshili05hO=figure(,toolbar','none\...'position',[200150450250],…'name','实例05'); t=0:pi/10:2*pi;[x,y]=meshgrid(t);subplot(2,2,l)plot(sin(t),cos(t))axisequalsubplot(2,2,2)z=sin(x)-cos(y);plot(t,z)axis([02*pi-22])subplot(2,2,3)h=sin(x)+cos(y);plot(t,h)axis([02*pi-22])subplot(2,2,4)g=(sin(x).A2)-(cos(y).A2);plot(t,g)axis([02*pi-11J)实例6:图形标注functionshili06h0=figurc('toolbar\'nonc',...'position',1200 150450400J,...'name'.'实例06');t=0:pi/10:2*pi;h=plot(t,sin(t));xlabel('t=0到2\piVfontsize',16);ylabel('sin(t)','fontsize',16);title('\it{从0to2\pi的正弦曲线)'/fontsize',16)x=get(h/xdata');y=get(h,*ydata'); imin=find(min(y)==y); imax=find(max(y)==y);text(x(imin),y(imin)v..[MeftaiTow最小值=\num2str(y(imin))Jv..fontsize\16)text(x(imax),y(imax),・・・[Meftarrow最大值=\num2str(y(imax))],...Tontsize\16)实例7:条形图形functionshili07hO=figure(,toolbar\,none\...'position',[200 150450350],...•name;实例07);tiao1=[56254822454541445745 512];tiao2=[4748575854526548J;t=0:7;bar(t,tiaol)xlabel('X轴');ylabelCTIAOl值');hl=gca;h2=axes(,position\get(hl/position,));plot(t,tiao2/linewidth\3)set(h2/yaxislocation7right\,colo