MATLAB code for Arrow


%Code:

figure;
axis([-7 3 -2 2]);
pause(1);
pause(1);
hold on;
t=0:2*pi/3:2*pi;
x=cos(t);
y=sin(t);
x1=[x(1) x(2) -1 0 -1 x(3) x(1)];
y1=[y(1) y(2) y(2) 0 -y(2) y(3) y(1)];
plot([0  0 -5 -5 0],[0.1,-0.1,-0.1,0.1 0.1],'k');
pause(1);
fill([0  0 -5 -5],[0.1,-0.1,-0.1,0.1],'k');
pause(1);
hold on;
plot(x1,y1,'k');
pause(1);
fill(x1,y1,'k');


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