Quaternion — represent a quaternion by its coefficients

ToQuaternion  ▪  FromQuaternion

QuaternionQ  ▪  UnitQuaternionQ  ▪  IntegerQuaternionQ  ▪  ScalarQ

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