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<pre>
Result of symbol lookup:
  Space group number: 148
  Schoenflies symbol: C3i^2
  Hermann-Mauguin symbol: R -3
  Trigonal using hexagonal axes
  Hall symbol: -R 3

Input space group symbol: R -3 :H
Convention: Default

Number of lattice translations: 3
Space group is centric.
Number of representative symmetry operations: 3
Total number of symmetry operations: 18

Parallelepiped containing an asymmetric unit:
  0&lt;=x&lt;=1/3; -1/6&lt;=y&lt;=0; 0&lt;=z&lt;1

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>-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,-x,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>-1<td>-<td>-<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,x,-z</tt>
<td>-3^-1<td>[0,0,1]<td>0,0,0<td>0,0,0
</tr>
<tr>
<td><tt>x+2/3,y+1/3,z+1/3</tt>
<td>1<td>-<td>-<td>-
</tr>
<tr>
<td><tt>-y+2/3,x-y+1/3,z+1/3</tt>
<td>3^1<td>[0,0,1]<td>0,0,1/3<td>1/3,1/3,0
</tr>
<tr>
<td><tt>-x+y+2/3,-x+1/3,z+1/3</tt>
<td>3^-1<td>[0,0,1]<td>0,0,1/3<td>1/3,0,0
</tr>
<tr>
<td><tt>-x+2/3,-y+1/3,-z+1/3</tt>
<td>-1<td>-<td>-<td>1/3,1/6,1/6
</tr>
<tr>
<td><tt>y+2/3,-x+y+1/3,-z+1/3</tt>
<td>-3^1<td>[0,0,1]<td>0,0,0<td>1/3,-1/3,1/6
</tr>
<tr>
<td><tt>x-y+2/3,x+1/3,-z+1/3</tt>
<td>-3^-1<td>[0,0,1]<td>0,0,0<td>1/3,2/3,1/6
</tr>
<tr>
<td><tt>x+1/3,y+2/3,z+2/3</tt>
<td>1<td>-<td>-<td>-
</tr>
<tr>
<td><tt>-y+1/3,x-y+2/3,z+2/3</tt>
<td>3^1<td>[0,0,1]<td>0,0,2/3<td>0,1/3,0
</tr>
<tr>
<td><tt>-x+y+1/3,-x+2/3,z+2/3</tt>
<td>3^-1<td>[0,0,1]<td>0,0,2/3<td>1/3,1/3,0
</tr>
<tr>
<td><tt>-x+1/3,-y+2/3,-z+2/3</tt>
<td>-1<td>-<td>-<td>1/6,1/3,1/3
</tr>
<tr>
<td><tt>y+1/3,-x+y+2/3,-z+2/3</tt>
<td>-3^1<td>[0,0,1]<td>0,0,0<td>2/3,1/3,1/3
</tr>
<tr>
<td><tt>x-y+1/3,x+2/3,-z+2/3</tt>
<td>-3^-1<td>[0,0,1]<td>0,0,0<td>-1/3,1/3,1/3
</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>f<td>18<td>1<td><tt>x,y,z</tt>
</tr>
<tr>
<td>e<td>9<td>-1<td><tt>1/2,0,0</tt>
</tr>
<tr>
<td>d<td>9<td>-1<td><tt>1/2,0,1/2</tt>
</tr>
<tr>
<td>c<td>6<td>3<td><tt>0,0,z</tt>
</tr>
<tr>
<td>b<td>3<td>-3<td><tt>0,0,1/2</tt>
</tr>
<tr>
<td>a<td>3<td>-3<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>x-y,-x-2*y,0</tt><td>[0,0,1]<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
  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: (3, 3, 3)
  Structure-seminvariant vectors and moduli: (1, 1, 2)
  Euclidean normalizer: (3, 3, 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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