# Storing calculated values from a for-loop and plotting.

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Farez Redzuan 2021 年 6 月 28 日
コメント済み: Farez Redzuan 2021 年 6 月 30 日
I would like to simulate an equation and plot a graph from the calculated values, but I'm not sure how to proceed to store the values of each iteration in the for-loop.
Any tips would be appreciated.
k = -1.9;
R = -1.6;
for r = 0.00 : 0.10 : 1.60
fr = r/R;
squrt = 1 - ((1 + k)* fr^2);
z = ((r^2)/R)/(1 + sqrt(squrt));
% from this point on I'm not sure how to proceed. how do i store each
% value into a matrix?
end

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### 採用された回答

Asmit Singh 2021 年 6 月 28 日

Hey You can refer to the plotting documentation. Considering you needed a z vs r graph, heres the code and the plot. Hope this helps. k = -1.9;
R = -1.6;
for r = 0.00 : 0.10 : 1.60
fr = r/R;
squrt = 1 - ((1 + k)* fr^2);
z = ((r^2)/R)/(1 + sqrt(squrt));
%plotting
plot(r,z,'.');
hold on
end
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Farez Redzuan 2021 年 6 月 30 日
Thank you!
I'm assuming the line 'hold on' is used to store the calculated values in the loop?

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