quack/src/HF/density.f90

36 lines
625 B
Fortran

subroutine density(nGrid,nBas,P,AO,rho)
! Calculate one-electron density
implicit none
include 'parameters.h'
! Input variables
integer,intent(in) :: nGrid
integer,intent(in) :: nBas
double precision,intent(in) :: P(nBas,nBas)
double precision,intent(in) :: AO(nBas,nGrid)
! Local variables
integer :: iG,mu,nu
! Output variables
double precision,intent(out) :: rho(nGrid)
rho(:) = 0d0
do iG=1,nGrid
do mu=1,nBas
do nu=1,nBas
rho(iG) = rho(iG) + AO(mu,iG)*P(mu,nu)*AO(nu,iG)
end do
end do
end do
end subroutine