Converse of object

• use: So it remains an intriguing question, whether e.g. gage field theory is more naturally quantised using quaternion Hilbert space, H.

Modifies a noun

• algebra: An error in the computation of inverses in quaternion algebras with non-standard parameters.

• matrix: Every 3#3 rotation matrix corresponds to a quaternion matrix that is unique except for its sign.

• math: Jason Wilkins ( fenix at io dot com ). Wrote the quaternion math routines and contributed the BeOS port.

• routine: Jason Wilkins ( fenix at io dot com ). Wrote the quaternion math routines and contributed the BeOS port.

• parameter: Block diagrams illustrate the conversion of an airplane motion parameters from body to earth axis for Euler angles and for the quaternion parameters.

• method: His work was a major factor in the development of vector analysis, in opposition to quaternion methods.

Noun used with modifier

• unit: A unit quaternion has m = 1. det( Q R )= m 4.