%rho(font sans bold q &quot; , &quot; %omega) = int func e^{i %omega t}%rho(font sans bold q &quot; , &quot; t) &quot; d &quot; t
%rho(font sans bold q &quot; , &quot; %omega) = int func e^{i %omega t}%rho(font sans bold q &quot; , &quot; t) &quot; d &quot; t