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 william. Viewing 1 post (of 1 total) Author Posts September 28, 2024 at 1:49 pm #11350 williamParticipant In lagrangian/Hamiltonian mechanics the action functional is a fundamental concept. 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