nabla_pol_sqrd Interface

interface
public module function nabla_pol_sqrd(self, u, l, co)

Arguments

Type IntentOptional Attributes Name
class(inplane_operators_t), intent(in) :: self

Instance of the type

real(kind=GP), intent(in), dimension(self%n_points) :: u

Values of variable u

integer, intent(in) :: l

Index, for which nabla_pol_sqrd is be computed

real(kind=GP), intent(in), optional, dimension(self%n_points) :: co

Coefficient, if not present it is assumed 1

Return Value real(kind=gp)

Description

Evaluates J^(-1) d/dx(J co du/dx u) + d/dy(co du/dy) where J is the Jacobian