Doubt in MATLAB program

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Joy Salomi
Joy Salomi 2019-11-8
评论： darova 2019-11-8
Can anyone help to fix this error?matlab error.jpg

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darova
darova 2019-11-8
Here is the problem
123.png
Also you have y(1),y(2),y(3). It means that you have 3 initial condition values, also you should have 3 diff. equations
  2 个评论
Joy Salomi
Joy Salomi 2019-11-8
Thank you very much Sir.
I have tried the following. Still I got errors.
matlab error 1.jpg
These are the diff.eqns and boundary conditions:
question.jpg
Can you please help me with this program sir?
darova
darova 2019-11-8
Can you please show how you declare derivatives in form:
ff = y(1);
df = y(2);
% ...
phi = (6);
dphi = y(7);
Write your equations according to this:
f(1,1) = df;
f(2,1) = ddf;
f(3,1) = df + 1.333*df^2 - ff*ddf;
% ...
You have y(8) (8 values) but still have only 4 initial values Untitled.png

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