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<pre>
Result of symbol lookup:
  Space group number: 191
  Schoenflies symbol: D6h^1
  Hermann-Mauguin symbol: P 6/m m m
  Hall symbol: -P 6 2

Input space group symbol: P 6/m m m
Convention: Default

Number of lattice translations: 1
Space group is centric.
Number of representative symmetry operations: 12
Total number of symmetry operations: 24

Parallelepiped containing an asymmetric unit:
  0&lt;=x&lt;=1/2; -1/3&lt;=y&lt;=0; 0&lt;=z&lt;=1/2

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</tt>
<td>6^1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-y,x-y,z</tt>
<td>3^1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-x,-y,z</tt>
<td>2<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-x+y,-x,z</tt>
<td>3^-1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>y,-x+y,z</tt>
<td>6^-1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-y,-x,-z</tt>
<td>2<td>[-1,1,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>x-y,-y,-z</tt>
<td>2<td>[1,0,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>x,x-y,-z</tt>
<td>2<td>[2,1,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>y,x,-z</tt>
<td>2<td>[1,1,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-x+y,y,-z</tt>
<td>2<td>[1,2,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-x,-x+y,-z</tt>
<td>2<td>[0,1,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-x,-y,-z</tt>
<td>-1<td>-<td>-<td>0,0,0
</tr>
<tr>
<td><tt>-x+y,-x,-z</tt>
<td>-6^1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>y,-x+y,-z</tt>
<td>-3^1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>x,y,-z</tt>
<td>-2<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>x-y,x,-z</tt>
<td>-3^-1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-y,x-y,-z</tt>
<td>-6^-1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>y,x,z</tt>
<td>-2<td>[-1,1,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-x+y,y,z</tt>
<td>-2<td>[1,0,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-x,-x+y,z</tt>
<td>-2<td>[2,1,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>-y,-x,z</tt>
<td>-2<td>[1,1,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>x-y,-y,z</tt>
<td>-2<td>[1,2,0]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>x,x-y,z</tt>
<td>-2<td>[0,1,0]<td>0,0,0<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>r<td>24<td>1<td><tt>x,y,z</tt>
</tr>
<tr>
<td>q<td>12<td>m<td><tt>x,y,1/2</tt>
</tr>
<tr>
<td>p<td>12<td>m<td><tt>x,y,0</tt>
</tr>
<tr>
<td>o<td>12<td>m<td><tt>x,2*x,z</tt>
</tr>
<tr>
<td>n<td>12<td>m<td><tt>x,0,z</tt>
</tr>
<tr>
<td>m<td>6<td>mm2<td><tt>x,2*x,1/2</tt>
</tr>
<tr>
<td>l<td>6<td>mm2<td><tt>x,2*x,0</tt>
</tr>
<tr>
<td>k<td>6<td>mm2<td><tt>x,0,1/2</tt>
</tr>
<tr>
<td>j<td>6<td>mm2<td><tt>x,0,0</tt>
</tr>
<tr>
<td>i<td>6<td>mm2<td><tt>1/2,0,z</tt>
</tr>
<tr>
<td>h<td>4<td>3m<td><tt>1/3,-1/3,z</tt>
</tr>
<tr>
<td>g<td>3<td>mmm<td><tt>1/2,0,1/2</tt>
</tr>
<tr>
<td>f<td>3<td>mmm<td><tt>1/2,0,0</tt>
</tr>
<tr>
<td>e<td>2<td>6mm<td><tt>0,0,z</tt>
</tr>
<tr>
<td>d<td>2<td>-62m<td><tt>1/3,-1/3,1/2</tt>
</tr>
<tr>
<td>c<td>2<td>-62m<td><tt>1/3,-1/3,0</tt>
</tr>
<tr>
<td>b<td>1<td>6/mmm<td><tt>0,0,1/2</tt>
</tr>
<tr>
<td>a<td>1<td>6/mmm<td><tt>0,0,0</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,0</tt><td>[0,0,1]<td>0,0,0
</tr>
<tr>
<td><tt>x+y,x+y,2*z</tt><td>[-1,1,0]<td>0,0,0
</tr>
<tr>
<td><tt>y,2*y,2*z</tt><td>[1,0,0]<td>0,0,0
</tr>
<tr>
<td><tt>0,x-2*y,2*z</tt><td>[2,1,0]<td>0,0,0
</tr>
<tr>
<td><tt>x+y,-x-y,2*z</tt><td>[1,1,0]<td>0,0,0
</tr>
<tr>
<td><tt>2*x+y,0,2*z</tt><td>[1,2,0]<td>0,0,0
</tr>
<tr>
<td><tt>2*x,x,2*z</tt><td>[0,1,0]<td>0,0,0
</tr>
</table><pre>

Additional generators of Euclidean normalizer:
  Number of structure-seminvariant vectors and moduli: 1
    Vector    Modulus
    (0, 0, 1) 2

Grid factors implied by symmetries:
  Space group: (1, 1, 1)
  Structure-seminvariant vectors and moduli: (1, 1, 2)
  Euclidean normalizer: (1, 1, 2)

  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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