FEM                     Define a surface or spatial field by a Finite
                        Element basis expansion
MeuseBorder             Boundary of the Meuse River data set
MeuseData               Meuse river data set
R_elementProperties     Compute some properties for each triangular
                        element of the mesh
R_eval.FEM              Evaluate a FEM object at a set of locations
R_eval.FEM.basis        Evaluate Finite Element bases and their
                        Derivatives at a set of locations
R_mass                  Compute the mass matrix
R_smooth.FEM.basis      Spatial regression with differential
                        regularization (fully implemented in R code)
R_stiff                 Compute the stiffness matrix
create.FEM.basis        Create a FEM basis
create.MESH.2D          Create a triangular mesh
eval.FEM                Evaluate a FEM object at a set of point
                        locations
image.FEM               Image Plot of a FEM object
mesh.2D.rectangular     Simple Rectangular mesh
mesh.2D.simple          Simple mesh
plot.FEM                Plot a 'FEM' object
plot.MESH2D             Plot a MESH2D object
refine.MESH.2D          Refine a triangular mesh
smooth.FEM.PDE.basis    Spatial regression with differential
                        regularization: anysotropic case (elliptic PDE)
smooth.FEM.PDE.sv.basis
                        Spatial regression with differential
                        regularization: anysotropic and non-stationary
                        case (elliptic PDE with space-varying
                        coefficients)
smooth.FEM.basis        Spatial regression with differential
                        regularization: stationary and isotropic case
                        (Laplacian)
