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

[KSSV]

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

Answer 1

[Mischa Kim]

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.

Answer 2

[KSSV]

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