When I use CVX to solve this function f(x,y,z)=x*z*log2(1+y/z))，the algorithm does not converge

[jackfsuia (Jack)]

Capacity_op is your expression holder,according to the following

@Yallenliang

expression Capacity_op(K,1,N,Cir);

so I think some of the following words might help:

After the cvx finished the optimization, the expression values are not equal to the original constraint values

In order to reliably have the optimal values of expressions after CVX completes, they must be reconstructed starting from CVX variable values. That is due to a design decision in CVX. CVX could have been designed to automatically do this, but it does not. However, the correct values of the expressions are used internally in performing the optimization.