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Element structure of dihedral group:D8

285 bytes added, 02:04, 22 June 2011
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We denote the identity element by <math>e</math>. The '''dihedral group''' <math>D_8</math>, sometimes called <math>D_4</math>, also called the {{dihedral group}} of order eight or the dihedral group acting on four elements, is defined by the following presentation: <math>\langle x,a| a^4 = x^2 = e, xax^{-1} = a^{-1}\rangle</math> Below is the multiplication table, with the row element multiplied on the left and the column element on the right.
{{#lst:dihedral group:D8|multiplication table}}
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