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General Positions of the 2D Crystallographic Point Group 4mm


Show the generators

No. (x,y) form Matrix form Symmetry operation
ITA Seitz
1x,y
(
  1  0 
  0  1  
)
1 1
2-x,-y
(
 -1  0 
  0 -1  
)
2 2
3-y,x
(
  0 -1 
  1  0  
)
4+ 4+
4y,-x
(
  0  1 
 -1  0  
)
4- 4-
5-x,y
(
 -1  0 
  0  1  
)
m 0,y m10
6x,-y
(
  1  0 
  0 -1  
)
m x,0 m01
7y,x
(
  0  1 
  1  0  
)
m x,x m1-1
8-y,-x
(
  0 -1 
 -1  0  
)
m x,-x m11


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