- Diane Hine, "Quaternion"
Fix belt tip under books on table top
While holding buckle level, step away
Rotate the buckle once; two pi nonstop
A twist results which looping won't unplay.
Restart and rotate buckle four times pi
And now by looping belt round buckle end
The twists are cleared, exhibiting to eye
Zen essence of rotation; comprehend?
October sixteenth, eighteen forty-three,
beside the Royal Canal of Dublin town,
Will Hamilton glimpsed spatial clarity,
as view from fourth dimension looking down.
For multiplying triples, fly one higher,
by summing in a more capacious zone,
‘A circuit closed and spark flashed' to inspire
famed maths graffiti carved in Broome Bridge stone.
i^=j^=k^= ijk = -1