n = quatnormalize(q)
n = quatnormalize(q) calculates
the normalized quaternion,
n, for a given quaternion,
q is an
m-by-4 matrix of normalized quaternions. Each
q must be a real number. Additionally,
its scalar number as the first column.
The quaternion has the form of
The normalized quaternion has the form of
q = [1 0 1 0]:
normal = quatnormalize([1 0 1 0]) normal = 0.7071 0 0.7071 0
 Stevens, Brian L., Frank L. Lewis, Aircraft Control and Simulation, Wiley–Interscience, 2nd Edition.