Home › Forums › density functional theory › functions and functionals › functional This topic has 0 replies, 1 voice, and was last updated 1 year, 2 months ago by Joachim Scheerlinck. Viewing 1 post (of 1 total) Author Posts October 5, 2023 at 7:33 am #9321 Joachim ScheerlinckParticipant Action is a functional, as it takes the integral of the Lagrangian of a system between two points in time and gives back a scalar for every function of generalized coordinates. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In