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x=0:pi/100:2*pi; y1=2*exp(-0.5*x); y2=cos(4*pi*x); plot(x,y1,x,y2) title('x from 0 to 2{\pi}'); %加图形标题 xlabel('Variable X'); %加X轴说明 ylabel('Variable Y');

x=0:pi/10:2*pi; y=2*sin(x); subplot(2,2,1);bar(x,y,'g'); title('bar(x,y,''g'')');axis([0,7,-2,2]); subplot(2,2,2);stairs(x,y,'b'); title('stairs(x,y,''b'')');axis([0,7,-2,2]); subplot(2,2,3);ste

x=0:pi/50:2*pi; y=sin(x); z=cos(x); plot(x,y,'r',x,z,'g'); %绘制两根不同曲线 Hl=get(gca,'Children'); %获取两曲线句柄向量Hl for k=1:size(Hl) if get(Hl(k),'Color')==[0 1 0] %[0 1 0]代表

x=0:pi/100:2*pi; y1=0.2*exp(-0.5*x).*cos(4*pi*x); plot(x,y1) hold on y2=2*exp(-0.5*x).*cos(pi*x); plot(x,y2); hold off

% Program 3_1 % Discrete-Time Fourier Transform Computation % % Read in the desired length of DFT colordef black; k = input('Number of frequency points = '); % Read in the numerator and denomi

t=0:pi/20:2*pi; y1=sin(t); y2=cos(t); figh=figure('Position',[30,100,800,350]); axes('GridLineStyle','-.','XLim',[0,2*pi],'YLim',[-1,1]); line('XData',t,'YData',y1,'LineWidth',2); line(t,y2); g

clf; %清除图形窗口中的内容 x=linspace(0,2*pi,20); y=sin(x); axes('Position',[0.2,0.2,0.2,0.7],'GridLineStyle','-.'); plot(y,x); grid on axes('Position',[0.4,0.2,0.5,0.5]); t=0:pi/1

x=linspace(0,2*pi,60); y=sin(x); hf=figure('Color',[0,1,0],'Position',[1,1,450,250],... 'Name','我的图形窗口','NumberTitle','off','MenuBar','none',... 'KeyPressFcn', 'plot(x,y);axis([0

x=linspace(0,2*pi,1000); y1=0.2*exp(-0.5*x).*cos(4*pi*x); y2=2*exp(-0.5*x).*cos(pi*x); k=find(abs(y1-y2)

x=-pi:.1:pi; y=sin(x); y1=sin(x); y2=cos(x); h=line(x,y1,'LineStyle',':','Color','g'); line(x,y2,'LineStyle','--','Color','b'); xlabel('-\pi \leq \Theta \leq \pi') ylabel('sin(\Theta)') title(