I’m using CVX Version 3.0beta, Build 1177 (e17eb8f) in MATLAB and I need to solve problems involving the exponential cone. I wrote the following simple piece of code:

cvx_begin

variables x(3);

minimize 1

subject to

{x} exp_cone

cvx_end

But I get the error:

Undefined function or variable ‘exp_cone’.

Is exp_cone supported in the version of CVX I’m using?

I have also tried the following syntax

x == exp_cone

which gives the same error as well.