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Type: Artigo de periódico
Title: Polar and axial vectors versus quaternions
Author: Silva, CC
Martins, RD
Abstract: Vectors and quaternions are quite different mathematical quantities because they have different symmetry properties. Gibbs and Heaviside created their vector system starting from the quaternion system invented by Hamilton. They identified a,pure quaternion as a vector and introduced some changes in the product of two vectors defined by Hamilton without realizing that the scalar product and vector product cannot be interpreted as the scalar part and vector part of the quaternion product. Toward the end of the 19th century some authors realized that there was an incompatibility between the vector and quaternion formalisms, but the central problem was not altogether clear. This paper will show that. the main difficulty arose from Hamilton's contradictory use of i, j, and k both as versors and as vectors. (C) 2002 American Association of Physics Teachers.
Country: EUA
Editor: Amer Assoc Physics Teachers Amer Inst Physics
Citation: American Journal Of Physics. Amer Assoc Physics Teachers Amer Inst Physics, v. 70, n. 9, n. 958, n. 963, 2002.
Rights: aberto
Identifier DOI: 10.1119/1.1475326
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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