### Syntax

pOp = swsym.point(symOp, r)

### Description

pOp = swsym.point(symOp, r) determines the point group symmetry at a given position in the unit cell in a given space group. It returns all the rotation matrices of the point group.

### Input Arguments

symOp
Symmetry operators of the space group stored in a matrix with dimensions of $$[3\times 4\times n_{op}]$$.
r
Column vector with 3 elements, position in the unit cell.

### Output Arguments

pOp
Point group operators in a matrix with dimensions of $$[3\times 3\times n_{op}]$$, the operators act on the relative atomic positions. To convert these rotation operators to Cartesian coordinate system, use:
R = BV*pOp(:,:,i)*inv(BV)


where BV is the matrix of lattice basis vectors, see spinw.basisvector.