---

SymRep Class Reference

The SymRep class provides an n dimensional matrix representation of a symmetry operation, such as a rotation or reflection. More...

#include <pointgrp.h>

List of all members.

Public Methods
	SymRep (int=0)
	SymRep (const SymmetryOperation &)
	~SymRep ()
	operator SymmetryOperation () const
	Cast to a SymmetryOperation.
double	trace () const
	returns the trace of the transformation matrix.
void	set_dim (int i)
	set the dimension of d.
double*	operator[] (int i)
	returns the i'th row of the transformation matrix.
const double*	operator[] (int i) const
	const version of the above.
double&	operator() (int i, int j)
	returns a reference to the (i,j)th element of the transformation matrix.
double	operator() (int i, int j) const
	const version of double& operator()(int i, int j).
void	zero ()
	zero out the symop.
SymRep	operate (const SymRep &r) const
	This operates on this with r (i.e. return r * this).
SymRep	transform (const SymRep &r) const
	This performs the transform r * this * r~.
void	unit ()
	Set equal to a unit matrix.
void	E ()
	Set equal to the identity.
void	i ()
	Set equal to an inversion.
void	sigma_h ()
	Set equal to reflection in xy plane.
void	sigma_xz ()
	Set equal to reflection in xz plane.
void	sigma_yz ()
	Set equal to reflection in yz plane.
void	rotation (int n)
	Set equal to a clockwise rotation by 2pi/n.
void	rotation (double theta)
void	c2_x ()
	Set equal to C2 about the x axis.
void	c2_y ()
	Set equal to C2 about the x axis.
void	print (std::ostream &=ExEnv::out()) const
	print the matrix.

---

Detailed Description

The SymRep class provides an n dimensional matrix representation of a symmetry operation, such as a rotation or reflection.

The trace of a SymRep can be used as the character for that symmetry operation. d is hardwired to 5x5 since the H irrep in Ih is 5 dimensional.

---

The documentation for this class was generated from the following file:

• pointgrp.h

---