matlab简单程序实例视频,matlab编程实例100例.docx
matlab編程實例100例
1-32是:圖形應用篇33-66是:界面設計篇67-84是:圖形處理篇85-100是:數值分析篇實例1:三角函數曲線(1)function shili01h0=figure('toolbar','none',... 'position',[198 56 350 300],... 'name','實例01');h1=axes('parent',h0,... 'visible','off');x=-pi:0.05:pi;y=sin(x);plot(x,y);xlabel('自變量X');ylabel('函數值Y');title('SIN( )函數曲線');grid on實例2:三角函數曲線(2)function shili02h0=figure('toolbar','none',... 'position',[200 150 450 350],... 'name','實例02');x=-pi:0.05:pi;y=sin(x)+cos(x);plot(x,y,'-*r','linewidth',1);grid onxlabel('自變量X');ylabel('函數值Y');title('三角函數');實例3:圖形的疊加function shili03h0=figure('toolbar','none',... 'position',[200 150 450 350],... 'name','實例03');x=-pi:0.05:pi;y1=sin(x);y2=cos(x);plot(x,y1,... '-*r',... x,y2,... '--og');grid onxlabel('自變量X');ylabel('函數值Y');title('三角函數');實例4:雙y軸圖形的繪制function shili04h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','實例04');x=0:900;a=1000;b=0.005;y1=2*x;y2=cos(b*x);[haxes,hline1,hline2]=plotyy(x,y1,x,y2,'semilogy','plot');axes(haxes(1))ylabel('semilog plot');axes(haxes(2))ylabel('linear plot');實例5:單個軸窗口顯示多個圖形function shili05h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','實例05');t=0:pi/10:2*pi;[x,y]=meshgrid(t);subplot(2,2,1)plot(sin(t),cos(t))axis equalsubplot(2,2,2)z=sin(x)-cos(y);plot(t,z)axis([0 2*pi -2 2])subplot(2,2,3)h=sin(x)+cos(y);plot(t,h)axis([0 2*pi -2 2])subplot(2,2,4)g=(sin(x).^2)-(cos(y).^2);plot(t,g)axis([0 2*pi -1 1])實例6:圖形標注function shili06h0=figure('toolbar','none',... 'position',[200 150 450 400],... 'name','實例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{從 0to2\pi 的正弦曲線}','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) 實例7:條形圖形function shili07h0=figure('toolbar','none',... 'position',[200 150 450 350],... 'name','實例07');tiao1=[562 548 224 545 41 445 745 5
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