Home › Forums › density functional theory › functions and functionals › functional This topic has 0 replies, 1 voice, and was last updated 2 months, 2 weeks ago by embotter. Viewing 1 post (of 1 total) Author Posts September 30, 2024 at 8:02 am #11366 embotterParticipant I think the most encountered functional is the action functional. This could be the integral of the Lagrangian (mechanics, field theory) or the Ricci scalar. 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