28 use iso_c_binding,
only: c_loc, c_f_pointer
48#include "lapl_operator_inc.F90"
52#include "lapl_operator_inc.F90"
This module calculates the derivatives (gradients, Laplacians, etc.) of a function.
Computes and , suitable as an operator callback for iterative solvers (CG, QMR, etc....
subroutine, public zlaplacian_op(x, hx, userdata)
Computes the negative Laplacian operator action: .
subroutine, public dshifted_laplacian_op(x, lx, userdata)
Computes the shifted Laplacian operator: .
subroutine, public dlaplacian_op(x, hx, userdata)
Computes the negative Laplacian operator action: .
subroutine, public zshifted_laplacian_op(x, lx, userdata)
Computes the shifted Laplacian operator: .