How do I make a range for a graph that is from 0 to 2pi in increments of pi/4?

I think I am just forgetting something simple, but how do I make a range for a graph that is from 0 to 2pi in increments of pi/4? I added my code below.

Theta = linspace(0,(pi)/4,2*(pi));

%%% Part B
y5 = cos(Theta);
y6 = sin(Theta);

%%% Part C
figure()
plot(Theta,y5, Theta,y6)
xlabel('Theta')
ylabel ('y5(Theta) and y6(Theta)')
legend('y5','y6')

Answer 1

[Torsten]

Theta = 0:pi/4:2*pi

or

Theta = linspace(0,2*pi,2*pi/(pi/4)+1);   

[Caroline F]

Thank you!