Quaternion

Bridge -- which my boys have since called Quaternion Bridge.

Great Astronomers 1876

I remember the first time I stumbled on Quaternion code doing a walk though.

Gavin Schmidt: station data "not used" in climate models « Climate Audit 2007

Quaternion multiplication and matrix multiplication is also noncommutative.

Algebra Pratt, Vaughan 2007

Terrestrial fire is presented as the weak variant of sidereal fire; it joins with oily substances and sulfur, for all of which Bacon introduces the Sulphur Quaternion.

Francis Bacon Klein, Juergen 2003

See also his paper, "Maxwell's Eight Equations As One Quaternion Equation", American Journal of Physics, 46, Apr. 1978, p. 430-431.

Chapter 4 1990

In Mediceus A, for instance, two quaternions (sixteen leaves) are lacking at the start, Leaf 7 is gone from the third quaternion, Leaves 1 and 8 from the fourth; from the thirty-first (now Quaternion 29) Leaf 1 has been cut, from the thirty-third and last Leaf 5 has disappeared.

Dio's Rome, Volume 1 (of 6) An Historical Narrative Originally Composed in Greek during the Reigns of Septimius Severus, Geta and Caracalla, Macrinus, Elagabalus and Alexander Severus: and Now Presented in English Form Cassius Dio

La Place, and all the great mathematicians of that period, had scarcely passed away when the more powerful Quaternion system began to dawn.

Personal Recollections, from Early Life to Old Age, of Mary Somerville Mary Somerville 1826

I appreciate the fact (seeing the Quaternion article) that Conservapedia is the target of parody and that the math articles are prime targets as it difficult for anyone without substantial expertise in the area to determine whether an edit is correct or parody.

Conservapedia - Recent changes [en] 2009

I appreciate the fact (seeing the Quaternion article) that Conservapedia is the target of parody and that the math articles are prime targets as it difficult for anyone without substantial expertise in the area to determine whether an edit is correct or parody.

Conservapedia - Recent changes [en] 2009

I'm currently writing a 3D space game and using a Quaternion to represent the spaceships orientation.

GameDev.Net 2009