How can I put a loop here?

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Nisar Ahmed
Nisar Ahmed 2022-10-9
编辑： Torsten 2022-10-9
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

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Torsten
Torsten 2022-10-9
编辑：Torsten 2022-10-9
Ran in:
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.')
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Torsten
Torsten 2022-10-9
编辑：Torsten 2022-10-9
Thanks, how to display legends?
https://de.mathworks.com/help/matlab/ref/legend.html
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.

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