Radicals ( Radical42) three strokes in Kanji;
dimensional, e.g.
;
directional, e.g.
;
logical, e.g.
in Kanji: delayed; late; winter;
numerological, e.g.
3;
structural, e.g.
decimal, IFF floating points (e.g. SQRT2, SQRT3), also see: 2dComputer;