Some articles on pattern, checkerboard pattern:
... A p4g pattern can be looked upon as a checkerboard pattern of copies of a square tile with 4-fold rotational symmetry, and its mirror image ... Alternatively it can be looked upon (by shifting half a tile) as a checkerboard pattern of copies of a horizontally and vertically symmetric tile and its 90° rotated ... Note that neither applies for a plain checkerboard pattern of black and white tiles, this is group p4m (with diagonal translation cells) ...
Famous quotes containing the word pattern:
“Put out the light, and then put out the light.
If I quench thee, thou flaming minister,
I can again thy former light restore
Should I repent me; but once put out thy light,
Thou cunningst pattern of excelling nature,
I know not where is that Promethean heat
That can thy light relume.”
—William Shakespeare (15641616)