Dear All

Hope you are doing well. I am new user in CVX.

When i consider N = 2, i get some value. but when declare N as variable CVX not solve it. How to solve this problem

```
I = 0.5;
x_f = 0.05;
h = 0.5;
% N = 2;
cvx_begin
variable x nonnegative
variable N nonnegative
minimize(((I*N*h*(x_f-x)*log(2))/((4 + x_f*h)*log(1+((x_f*h)/(4)))^2)))
cvx_end
```