Question with rotating 2d vectors.

So the questions ask to use the code I had generated before which is:

function test
z=zeros(1,101);
w=zeros(1,101);
m=1;

for t=0:3.6:360
w(m) = ((1 + cosd(5*t))*cosd(t));
z(m) = ((1 + cosd(5*t))*sind(t));
m=m+1;

end
plot(w,z,'b--')
axis(5*[-1 1 -1 1])
end

and to rotate the flower image 50 degrees using the rotation matrix. How would I go about doing this?

Answer 1

[Roger Stafford]

(Corrected - At first erroneously I rotated in clockwise direction) r = 50; wr = w*cosd(r)-z*sind(r); zr = w*sind(r)+z*cosd(r); plot(wr,zr,’y-‘)