# Changes

## Element structure of dihedral group:D8

, 02:04, 22 June 2011
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connective = of}}
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We denote the identity element by $e$. The '''dihedral group''' $D_8$, sometimes called $D_4$, also called the {{dihedral group}} of order eight or the dihedral group acting on four elements, is defined by the following presentation: $\langle x,a| a^4 = x^2 = e, xax^{-1} = a^{-1}\rangle$ 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}}