Half-diagonal
(Redirected from Hd)
The half-diagonal (abbreviated as hd) is a natural measurement of distance between parallel glider lanes, or in self-constructing circuitry, e.g. between elbow locations in a universal construction arm elbow operation library.
If two gliders are in the same phase and exactly lined up vertically or horizontally, N cells away from each other, then the two glider lanes are considered to be N half diagonals (hd) apart. Gliders that are an integer number of full diagonals apart must be the same color, whereas integer half diagonals allow for both glider colors.
See also
External links
- Half-diagonal at the Life Lexicon
- hd at the Life Lexicon