# How can I put a loop here?

1 view (last 30 days)
Nisar Ahmed on 9 Oct 2022
Edited: Torsten on 9 Oct 2022
Hi,
Here is my code below, I want to compute and plot (del2,del) for each value of V. How can I make a loop here?
V = [0.5 1 2 3 4 6 10];
del = 0:10:90;
del_r = del.*pi./180;
for i=V(:,1):V(:,end)
x = V(:,i).*tan(del_r);
end
del_r2 = atan(x);
del2 = del_r2*180./pi;
figure, plot(del2,del) % plot for each value of V

Torsten on 9 Oct 2022
Edited: Torsten on 9 Oct 2022
V = [0.5 1 2 3 4 6 10].';
del = 0:1:90;
del_r = del.*pi./180;
x = V.*tan(del_r);
del_r2 = atan(x);
del2 = del_r2*180./pi;
figure(1)
plot(del2,del)
figure(2)
del2 = atand(V.*tand(del));
plot(del2,del)
tot = sind(del2)./sind(del);
figure(3)
plot(tot.',del2.')
##### 3 CommentsShow 1 older commentHide 1 older comment
Torsten on 9 Oct 2022
Edited: Torsten on 9 Oct 2022
Thanks, how to display legends?
and if I compute further tot = sin(del2)./sin(del) and the plot(tot,del2); Is the correct way to compute and plot 7 curves?
Check above whether this is really what you want to plot.
You plot f(x) = atan(V.*tan(x)) against g(x) = sin(atan(V.*tan(x)))/sin(x) - quite unusual, I think. And for x=0 you get NaN for g(x).
And use sind, cosd, tand, asind, acosd, atand as trigonometric functions instead of sin, cos, tan, asin, acos, atan as you work in degrees, not radians.
Nisar Ahmed on 9 Oct 2022
@Torsten Thanks