Radicals ( Radical8) two strokes in Kanji;
dimensional, e.g.
IFF electronic, it can be one of the Schematic Symbols i.e. to do (connect, disconnect) between nodes;
www.jisho.org radical number 8 ... ;
directional, e.g.
;
logical, e.g.
in Hiragana:
lid;
something to be capped (controlled from above) e.g. x variable to be controlled
by y variable;
something to be limited e.g. y variable's value;
numerological, e.g.
2;
structural, e.g.
supercomputer (e.g. The K computer), also see: Computers;
x variable to be controlled by y variable;