Home › Forums › density functional theory › functions and functionals › Functions and Functionals This topic has 0 replies, 1 voice, and was last updated 1 month, 3 weeks ago by DiogoMz. Viewing 1 post (of 1 total) Author Posts October 24, 2024 at 4:58 pm #11706 DiogoMzParticipant The Riemann integral is a functional: we provide a function limited by two points in a 2D space and obtain the area beneath the curve. 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