# SymmetryOperation¶

class psi4.core.SymmetryOperation

Bases: pybind11_object

Class to provide a 3 by 3 matrix representation of a symmetry operation, such as a rotation or reflection.

Methods Summary

 E(self) Set equal to E c2_x(self) Set equal to C2 about the x axis c2_y(self) Set equal to C2 about the y axis c2_z(self) Set equal to C2 about the z axis i(self) Set equal to an inversion matrix(self) Return the matrix for the operation on Cartesians operate(self, arg0) Performs the operation arg2 * arg1 rotate_n(self, arg0) Set equal to a clockwise rotation by 2pi/n rotate_theta(self, arg0) Set equal to a clockwise rotation by theta sigma_xy(self) Set equal to reflection in xy plane sigma_xz(self) Set equal to reflection in xz plane sigma_yz(self) Set equal to reflection in yz plane trace(self) Returns trace of transformation matrix transform(self, arg0) Performs the transform arg2 * arg1 * arg2~ transpose(self) Performs transposition of matrix operation unit(self) Set equal to a unit matrix zero(self) Zero out the symmetry operation

Methods Documentation

E(self: psi4.core.SymmetryOperation) None

Set equal to E

c2_x(self: psi4.core.SymmetryOperation) None

Set equal to C2 about the x axis

c2_y(self: psi4.core.SymmetryOperation) None

Set equal to C2 about the y axis

c2_z(self: psi4.core.SymmetryOperation) None

Set equal to C2 about the z axis

i(self: psi4.core.SymmetryOperation) None

Set equal to an inversion

matrix(self: psi4.core.SymmetryOperation) List[List[float[3]][3]]

Return the matrix for the operation on Cartesians

operate(self: psi4.core.SymmetryOperation, arg0: psi4.core.SymmetryOperation)

Performs the operation arg2 * arg1

rotate_n(self: psi4.core.SymmetryOperation, arg0: int) None

Set equal to a clockwise rotation by 2pi/n

rotate_theta(self: psi4.core.SymmetryOperation, arg0: float) None

Set equal to a clockwise rotation by theta

sigma_xy(self: psi4.core.SymmetryOperation) None

Set equal to reflection in xy plane

sigma_xz(self: psi4.core.SymmetryOperation) None

Set equal to reflection in xz plane

sigma_yz(self: psi4.core.SymmetryOperation) None

Set equal to reflection in yz plane

trace(self: psi4.core.SymmetryOperation)

Returns trace of transformation matrix

transform(self: psi4.core.SymmetryOperation, arg0: psi4.core.SymmetryOperation)

Performs the transform arg2 * arg1 * arg2~

transpose(self: psi4.core.SymmetryOperation) None

Performs transposition of matrix operation

unit(self: psi4.core.SymmetryOperation) None

Set equal to a unit matrix

zero(self: psi4.core.SymmetryOperation) None

Zero out the symmetry operation