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 SeanM. Viewing 1 post (of 1 total) Author Posts October 1, 2024 at 9:08 am #11404 SeanMParticipant The action of a physical system is a functional of the Lagrangian. 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