Issue with sine graph
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I am having some difficulty graphing a function using sine. I graph it and it is either a y =x type graph or just lines. If someone could provide some direction that would be great.
%Oblique Balance Script
figure('Name','Team A Graphs');
clf;
%%Weight Ratio
subplot(2,1,1)
t=[0:0.01:180]
r = sind(30 + t) ./ sind(30 - t);
plot(t, r);
area(t,r,'FaceColor',[.8,.9,1.0]);
%Weight Graph
title('Weight ratio')
xlabel('Angle change')
ylabel('Ratio')
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Réponses (1)
Sulaymon Eshkabilov
le 22 Mai 2021
Hi,
If you're trying to plot the weight ratio explained in your previous post, that has to be up to 30 degrees.
Thus, you'd need to make some corrections in your code while selecting the range t values, e.g.:
...
t=0:.25:29;
...
Note that at t=30, y goes to inf.
Good luck.
1 commentaire
DGM
le 23 Mai 2021
For emphasis:
t=[0:0.01:180];
r = sind(30 + t) ./ sind(30 - t); % the denominator goes to zero.
plot(t, r);
area(t,r,'FaceColor',[.8,.9,1.0]);
ylim([-100 100]) % so explicitly limit y limits
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/627118/image.png)
I have no idea what this plot means conceptually, but that's why it looks like it does.
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