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Cuaternión
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Artículo WikipediaFuente Dbpedia
In mathematics, the quaternions are a number system that extends the complex numbers. They were first described by Irish mathematician William Rowan Hamilton in 1843 and applied to mechanics in three-dimensional space. A feature of quaternions is that multiplication of two quaternions is noncommutative. Hamilton defined a quaternion as the quotient of two directed lines in a three-dimensional space or equivalently as the quotient of two vectors.Quaternions find uses in both theoretical and applied mathematics, in particular for calculations involving three-dimensional rotations such as in three-dimensional computer graphics and computer vision. In practical applications, they can be used alongside other methods, such as Euler angles and rotation matrices, or as an alternative to them depending on the application.In modern mathematical language, quaternions form a four-dimensional associative normed division algebra over the real numbers, and thus also form a domain. In fact, the quaternions were the first noncommutative division algebra to be discovered. The algebra of quaternions is often denoted by H (for Hamilton), or in blackboard bold by (Unicode U+210D, ℍ). It can also be given by the Clifford algebra classifications Cℓ0,2(R) ≅ Cℓ03,0(R). The algebra H holds a special place in analysis since, according to the Frobenius theorem, it is one of only two finite-dimensional division rings containing the real numbers as a proper subring, the other being the complex numbers. These rings are also Euclidean Hurwitz algebras, of which quaternions are the largest associative algebra.The unit quaternions can therefore be thought of as a choice of a group structure on the 3-sphere S3 that gives the group Spin(3), which is isomorphic to SU(2) and also to the universal cover of SO(3).
Cuaternión
Wikipedia Inglés http://en.wikipedia.org/wiki/Quaternion
Wikipedia Español http://es.wikipedia.org/wiki/Cuaterni?n
Enlaces externos relacionado http://ai.stanford.edu/~diebel/attitude.html http://aiss.suffield.drdc-rddc.gc.ca/uploads/quaternion.pdf http://arxiv.org/abs/0810.5562 http://arxiv.org/abs/math/0501249 http://arxiv.org/abs/math/0701759 http://arxiv.org/abs/physics/0506177 http://arxiv.org/pdf/1207.0666.pdf http://arxiv.org/pdf/math-ph/0201058 http://books.elsevier.com/companions/0120884003/vq/index.html http://books.google.com/books?id=fIRAAAAAIAAJ http://gpwiki.org/index.php/OpenGL:Tutorials:Using_Quaternions_to_represent_rotation http://historical.library.cornell.edu/cgi-bin/cul.math/docviewer?did=05230001&seq=9 http://math.fullerton.edu/mathews/c2003/QuaternionBib/Links/QuaternionBib_lnk_3.html http://members.cox.net/vtrifonov/ http://nugae.wordpress.com/2007/04/25/on-quaternions-and-octonions/ http://plus.maths.org/content/os/issue32/features/baez/index http://world.std.com/~sweetser/quaternions/qindex/qindex.html http://www.1911encyclopedia.org/Quaternions http://www.cs.indiana.edu/~hanson/quatvis/ http://www.emis.ams.org/classics/Hamilton/OnQuat.pdf http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/index.htm http://www.fho-emden.de/~hoffmann/quater12012002.pdf http://www.gamedev.net/reference/articles/article1095.asp http://www.geometrictools.com/Documentation/Documentation.html http://www.geometrictools.com/Documentation/DocumentationBody.html http://www.geometrictools.com/LibFoundation/Mathematics/Mathematics.html http://www.geometrictools.com/LibFoundation/Mathematics/MathematicsBody.html http://www.itk.org/CourseWare/Training/QuaternionsI.pdf http://www.itk.org/CourseWare/Training/QuaternionsII.pdf http://www.j3d.org/matrix_faq/matrfaq_latest.html http://www.maths.nuim.ie/links/hamilton.shtml http://www.maths.tcd.ie/pub/HistMath/People/Hamilton/Quaternions.html http://www.stahlke.org/dan/phys-papers/quaternion-paper.pdf http://www.ugcs.caltech.edu/~presto/papers/Quaternions-Britannica.ps.bz2 http://www.unpronounceable.com/julia/ https://sites.google.com/site/patrickmaillot/english https://webspace.utexas.edu/aam829/1/m/NegativeMath.html

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