The quaternions are a number system which extends to the complex numbers.
They are members of noncommutative algebra , first invented by William Rowan
Hamilton in 1843. Hamilton defined a quaternion as the quotient of two vectors.
The algebra of quaternions is denoted by H , also by the Clifford algebra classifi-
cations Cl0,2(R) ∼= Cl0
3,0
(R). A quaternion is defined in the form