Calculate rotation between two vectors
b — 3-D vector
3-D vectors between which rotation is being calculated.
options — Structure containing epsilon
Structure containing the parameter
epsilon that represents the
value below which a number will be treated as zero (default value is 1e-12). Default
r — Axis angle rotation vector
Axis-angle rotation, returned as a four element row vector. The first three elements specify the rotation axis, and the last element defines the angle of rotation.