I am trying to plot x and y with y being the only unknown but I don’t what is wrong in my code please help

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Honore Lopaka 2021-1-11

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回答： Mischa Kim 2021-1-11

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KSSV 2021-1-11

Don;t attach your code as image snippet.....copy paste your code here.

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Mischa Kim 2021-1-11

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Honore,

the one thing I notice is that x and y are vectors. Rewrite the y-equation using the dot operator, .^ instead of just ^:

y = ..cos(theta)^2)*x.^2;

In general, please share in your questions code rather than a screen shot of the code.

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KSSV 2021-1-11

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Your x is an array
Where as theta is only a scalar.
You have to make theta and x both arrays of same size.
You need to use element by element operations.

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