Home › Forums › density functional theory › functions and functionals › functions and functionals This topic has 0 replies, 1 voice, and was last updated 1 year, 7 months ago by phangels. Viewing 1 post (of 1 total) Author Posts May 8, 2023 at 6:08 am #8509 phangelsParticipant In Lagrange mechanics the the action functional(integral of the Lagrangian through the path) is an extremal. 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