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<pre>
Result of symbol lookup:
  Space group number: 169
  Schoenflies symbol: C6^2
  Hermann-Mauguin symbol: P 61
  Hall symbol: P 61

Input space group symbol: P 61
Convention: Default

Number of lattice translations: 1
Space group is acentric.
Space group is chiral.
Space group is enantiomorphic.
Number of representative symmetry operations: 6
Total number of symmetry operations: 6

Parallelepiped containing an asymmetric unit:
  0&lt;=x&lt;1; 0&lt;=y&lt;1; 0&lt;=z&lt;1/6

List of symmetry operations:
</pre><table border=2 cellpadding=2>
<tr>
<th>Matrix
<th>Rotation-part type
<th>Axis direction
<th>Screw/glide component
<th>Origin shift
</tr>
<tr>
<td><tt>x,y,z</tt>
<td>1<td>-<td>-<td>-
</tr>
<tr>
<td><tt>x-y,x,z+1/6</tt>
<td>6^1<td>[0,0,1]<td>0,0,1/6<td>0,0,0
</tr>
<tr>
<td><tt>-y,x-y,z+1/3</tt>
<td>3^1<td>[0,0,1]<td>0,0,1/3<td>0,0,0
</tr>
<tr>
<td><tt>-x,-y,z+1/2</tt>
<td>2<td>[0,0,1]<td>0,0,1/2<td>0,0,0
</tr>
<tr>
<td><tt>-x+y,-x,z+2/3</tt>
<td>3^-1<td>[0,0,1]<td>0,0,2/3<td>0,0,0
</tr>
<tr>
<td><tt>y,-x+y,z+5/6</tt>
<td>6^-1<td>[0,0,1]<td>0,0,5/6<td>0,0,0
</tr>
</table><pre>

List of Wyckoff positions:
</pre><table border=2 cellpadding=2>
<tr>
<th>Wyckoff letter
<th>Multiplicity
<th>Site symmetry<br>point group type
<th>Representative special position operator
</tr>
<tr>
<td>a<td>6<td>1<td><tt>x,y,z</tt>
</tr>
</table><pre>

Harker planes:
</pre><table border=2 cellpadding=2>
<tr>
<th>Algebraic
<th>Normal vector
<th>A point in the plane
</tr>
<tr>
<td><tt>-y,-x-y,1/6</tt><td>[0,0,1]<td>0,0,1/6
</tr>
<tr>
<td><tt>x-y,-x-2*y,1/3</tt><td>[0,0,1]<td>0,0,1/3
</tr>
<tr>
<td><tt>2*x,2*y,1/2</tt><td>[0,0,1]<td>0,0,1/2
</tr>
</table><pre>

Additional generators of Euclidean normalizer:
  Number of structure-seminvariant vectors and moduli: 1
    Vector    Modulus
    (0, 0, 1) 0
  Further generators:
</pre><table border=2 cellpadding=2>
<tr>
<th>Matrix
<th>Rotation-part type
<th>Axis direction
<th>Screw/glide component
<th>Origin shift
</tr>
<tr>
<td><tt>y,x,-z</tt>
<td>2<td>[1,1,0]<td>0,0,0<td>0,0,0
</tr>
</table><pre>

Grid factors implied by symmetries:
  Space group: (1, 1, 6)
  Structure-seminvariant vectors and moduli: (1, 1, 1)
  Euclidean normalizer: (1, 1, 6)

  All points of a grid over the unit cell are mapped
  exactly onto other grid points only if the factors
  shown above are factors of the grid.

</pre>
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