in the picture below you can find a message which describe what I need to fix in these two equations in the description.

Theta_opt = inv(A + diag(zeta))*b;

[Image Analyst]

Original question, so you can see it after he deletes it.

in the picture below you can find a message which describe what I need to fix in these two equations in the description.

Theta_opt = inv(A + diag(zeta))*b;

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[Swetha Polemoni]

Hi

As the warning clearly mentioned, try replacing inv(A + diag(zeta))*b with b/ inv(A + diag(zeta)). Because in Matlab inv(A)*b and b/A are computed differently and b/A has performance benefits over inv(A)*b. You can find it in the following link.

https://in.mathworks.com/help/matlab/ref/inv.html#description