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 ianlesnik. Viewing 1 post (of 1 total) Author Posts October 14, 2023 at 8:36 pm #9505 ianlesnikParticipant In calculus of variations, functionals are used to evaluate some property of a function so that that property can be minimized. For example, a functional might calculate the length of a curve described by a function on some interval. 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