How can I put a loop here?

Question

Nisar Ahmed 2022-10-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1820505-how-can-i-put-a-loop-here

编辑： Torsten 2022-10-9

采纳的回答： Torsten

在 MATLAB Online 中打开

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

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Torsten 2022-10-9

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1820505-how-can-i-put-a-loop-here#answer_1069815

编辑：Torsten 2022-10-9

在 MATLAB Online 中打开

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 个评论
显示 1更早的评论隐藏 1更早的评论

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.

Nisar Ahmed 2022-10-9