Plotting a set of unit vectors in 2-D

I am trying to figure out what is the best way to plot a set of unit vectors in 2-D anchored at (0,0). I am defining my rotational matrix (R) as follows.

R = [cosd(theta) -sind(theta); sind(theta) cos(theta)];

The angle of rotation is from 0 to 2pi such that it forms a unit circle. I also would rather use the regular plot command over plotv or quiver. Anyone has any suggestions?

Thanks.

Answer 1

[Star Strider]

I’m not exactly certain what you want to do. I would do what you described with this:

a = linspace(0, 2*pi, 10);
r = 1;
x = r*cos(a);
y = r*sin(a);
o = zeros(size(a));

figure(1)
plot([o' x']', [o' y']')
axis equal

[bio lim]

Great way. Thanks. I was just meddling with random problems.

[Star Strider]

My pleasure.

That was fun to program!