Plot a circle and a vector moving around it

Hi

Draw a circle, then plot multiple vectors from the origin to the outline of the circle

angle = 0:0.05:2*pi
x = cos(angle)';
y = sin(angle)';
z = [x,y];

figure(1)
hold on
plot(x,y)   % circle
for i = 1:length(angle)
  plotv(z,'-')   %plot vector for each angle 
  drawnow;pause(0.2);
end

but it is only drawing the same one one at 45 degrees

Answer 1

[KSSV]

r = 1. ; % radius of circle 
th = linspace(0,2*pi) ;

x = r*cos(th) ; 
y = r*sin(th) ;

plot(x,y)

quiver(x,y,x,y)

[Stephen23]

+1 innovative use of quiver

[Nathan Kennedy]

I don't think quiver is suitable as it plots all of them at the same time and drawnow cant be used?

Answer 2

[Star Strider]

Try this slight variation on your code:

figure(1)
AxH = axes('NextPlot', 'add');
plot(x,y)   % circle
for i = 1:length(angle)
  plot([0 z(i,1)], [0 z(i,2)],'-')   %plot vector for each angle 
  axis([-1.1  1.1  -1.1  1.1])
  axis equal
  drawnow
  pause(0.1);
end