Quaternion — represent a quaternion by its coefficients
AbsIJK — absolute value of the pure quaternion part of a quaternion
AdjustedSignIJK — adjusted sign of the pure quaternion part
LeftAssociates — the 24 left associates of a quaternion
RightAssociates — the 24 right associates of a quaternion
PrimaryLeftAssociate — the left associate with the largest scalar component
PrimaryRightAssociate — the right associate with the largest scalar component
LeftGCD — greatest common left divisor of two quaternions
RightGCD — greatest common right divisor
