function sys = logdet(P)

% Create an object
if isa(P,'sdpvar')   
    if is(P,'hermitian')
        superiorto('double')
        superiorto('sdpvar')
        sys.P  = P;
        sys.cx = [];
        sys.gain = 1;
        sys = class(sys,'logdet');
    else
        error('logdet can only be applied to Hermitian SDPVAR objects')
    end
else
    error('logdet can only be applied to Hermitian SDPVAR objects')
end