Examples Functional derivative
1 examples 1.1 thomas–fermi kinetic energy functional 1.2 coulomb potential energy functional 1.3 weizsäcker kinetic energy functional 1.4 entropy 1.5 exponential 1.6 functional derivative of function 1.7 functional derivative of iterated function examples thomas–fermi kinetic energy functional the thomas–fermi model of 1927 used kinetic energy functional noninteracting uniform electron gas in first attempt of density-functional theory of electronic structure: t t f [ ρ ] = c f ∫ ρ 5 / 3 ( r ) d r . {\displaystyle t_{\...