(Continued)

Saturday, October 16, 2010

Quaternion Day

m759 @ 12:00 PM

Brightness at Noon continued

i2 = j2 = k2 = ijk = -1

– Sir William Rowan Hamilton,
   Oct. 16, 1843

See also this journal on 1/09, 2010.

This post was suggested by the date
of a user comment in Wikipedia.