Prod_inv: Undefined function or variable 'n'


#1

Update: After installing CVX 3.0beta, Build 1175, it works as expected.

I would like to write 1/(x(1)*x(2)) <= w.
According to the reference guide, this should be possible with prod_inv(x).
But I get: “Undefined function or variable ‘n’.”:

s=2;
cvx_begin
variables x(s) w
x >= 1
x <= 2
prod_inv(x) <= w
minimize(w)
cvx_end

Setting s=1 works fine.