Correct!

Question:

Scaling the quaternion vector by sin(a/2) is sensible because:

a) the magnitude of the vector is zero when you are at your beginning position (i.e. a = 0).

b) the magnitude of the vector is maximum when you have rotated the furthest from the zero position (ie when a = 1800)

c) both the above


Copywrite © 1996 Tutis Vilis and Douglas Tweed
Department of Physiology
University of Western Ontario
London Ontario Canada
Updated November 28, 1996

Comments welcome. Email to tvilis@physiology.uwo.ca