文档介绍：实例1:三角函数曲线(1)functionshili01h0=figure('toolbar','none',...'position',[**********],...'name','实例01');h1=axes('parent',h0,...'visible','off');x=-pi::pi;y=sin(x);plot(x,y);xlabel('自变量X');ylabel('函数值Y');title('SIN()函数曲线');gridon实例2:三角函数曲线(2)functionshili02h0=figure('toolbar','none',...'position',[200150450350],...'name','实例02');x=-pi::pi;y=sin(x)+cos(x);plot(x,y,'-*r','linewidth',1);gridonxlabel('自变量X');ylabel('函数值Y');title('三角函数');实例3:图形的叠加functionshili03h0=figure('toolbar','none',...'position',[200150450350],...'name','实例03');x=-pi::pi;y1=sin(x);y2=cos(x);plot(x,y1,...'-*r',...x,y2,...'--og');gridonxlabel('自变量X');ylabel('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',[200150450250],...'name','实例04');x=0:900;a=1000;b=;y1=2*x;y2=cos(b*x);[haxes,hline1,hline2]=plotyy(x,y1,x,y2,'semilogy','plot');axes(haxes(1))ylabel('semilogplot');axes(haxes(2))ylabel('linearplot');实例5:单个轴窗口显示多个图形functionshili05h0=figure('toolbar','none',...'position',[200150450250],...'name','实例05');t=0:pi/10:2*pi;[x,y]=meshgrid(t);subplot(2,2,1)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).^2)-(cos(y).^2);plot(t,g)axis([02*pi-11])实例6:图形标注functionshili06h0=figure('toolbar','none',...'position',[200150450400],...'name','实例06');t=0:pi/10:2*pi;h=plot(t,sin(t));xlabel('t=0到2\pi','fontsize',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),...['\leftarrow最小值=',num2str(y(imin))],...'fontsize',16)text(x(imax),y(imax),...['\leftarrow最大值=',num2str(y(imax))],...'fontsize',16)实例7:条形图形functionshili07h0=figure('toolbar','none',...'position',[200150450350],...'name','实例07');tiao1=[56254822454541445745512];tiao2=[4748575854526548];t=0:7;bar(t,tiao1)xlabel('X轴');ylabel('TIAO1值');h1=gca;h2=axes('position',get(h1,'position'));p