moab::Element Namespace Reference

Classes
class	Map
	Class representing a map (diffeomorphism) F parameterizing a 3D element by its canonical preimage. More...
class	LinearHex
	Shape function space for trilinear hexahedron, obtained by a pushforward of the canonical linear (affine) functions. More...
class	QuadraticHex
	Shape function space for trilinear hexahedron, obtained by a pushforward of the canonical linear (affine) functions. More...
class	LinearTet
	Shape function space for a linear tetrahedron, obtained by a pushforward of the canonical affine shape functions. More...
class	SpectralHex
class	LinearQuad
	Shape function space for bilinear quadrilateral, obtained from the canonical linear (affine) functions. More...
class	LinearEdge
	Shape function space for bilinear quadrilateral, obtained from the canonical linear (affine) functions. More...
class	SpectralQuad
Functions
double	SH (const int i, const double xi)
double	DSH (const int i, const double xi)

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Function Documentation

double moab::Element::DSH	(	const int	i,
		const double	xi
	)

Definition at line 671 of file ElemUtil.cpp.

  {
    switch (i)
    {
    case -1: return xi-0.5;
    case 0: return -2*xi;
    case 1: return xi+0.5;
    default: return 0.;
    }
  }

double moab::Element::SH	(	const int	i,
		const double	xi
	)

Definition at line 661 of file ElemUtil.cpp.

  {
    switch (i)
    {
    case -1: return (xi*xi-xi)/2;
    case 0: return 1-xi*xi;
    case 1: return (xi*xi+xi)/2;
    default: return 0.;
    }
  }