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x1=0:pi/100:2*pi; x2=0:pi/100:3*pi; y1=2*exp(-0.5*x1).*sin(2*pi*x1); y2=1.5*exp(-0.1*x2).*sin(x2); plotyy(x1,y1,x2,y2); title('This is figure of example 6-8.') xlabel('x'); ylabel('y1 y2'); l

x=(-3*pi:pi/50:3*pi)+eps;y=sin(x).^2+cos(x); lin=plot(x,y); cm=uicontextmenu; %创建控制曲线颜色的快捷菜单，有红色、蓝色和绿色三个选择项 uimenu(cm,'label','Red','callback','set(lin,''color'',''r''),') uimenu(cm,'label','

x=-3*pi:pi/10:3*pi; y = 1-sin(x).*cos(x); Hndl=plot(x,y);grid on set(gcf,'Color',[0 1 0.5]); %设置窗口背景为绿色 set(Hndl,'Color',[1 0 0]); %设置曲线颜色为红色 set(Hndl,'L

subplot(2,2,1);fplot('sind(x)',[-360 360]);title('sin(x)') subplot(2,2,2);fplot('cosd(x)', [-360 360]);title(' cos(x)') subplot(2,2,3);fplot('sinh(x)',[-2*pi 2*pi]);title(' sinh(x)') subplot(2,2,4)

x=-2*pi:.1:2*pi;y=sin(x); axes('GridLineStyle','-.','XLim',[ -2*pi,2*pi],'YLim',[-1,1]); h=line(x,y,'LineStyle',':','Color','g'); xlabel('-\pi \leq \Theta \leq \pi') ylabel('sin(\Theta)') title('

t=0:pi/20:4*pi;y=exp(-0.2*t).*(cos(t)+i*sin(t)); subplot(2,2,1),plot(t,y); %只绘制实部图形 title('plot of complex function vs time');xlabel('t');ylabel('y(t)'); t=0:pi/20:4*pi;y=exp(-0.2*t).*(cos(t)+i*si

#include swap(int * pi, int * pj) { int temp; temp = * pi; * pi = * pj; * pj = temp; } main() { int a,b; int *pa, *pb; printf("Please input

#include #define PI 3.141592 #define R 3.0 #define L 2*PI*R #define S PI*R*R main() { printf("L=%f\nS=%f\n",L,S); while(1); }

#include #define PI 3.141592 #define CIRCLE(R,L,S) L=2*PI*R; S=PI*(R)*(R) main() { float r,l,s; printf("Please input r: \n"); scanf("%f", &r);

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