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Benedict Irwin edited For 3D space.tex
over 9 years ago
Commit id: b6b2b56f42effa18e442a1abfe611c6e4a4fe9fb
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If we take a 2x2x2 cube, we have 8 elements, these are formally the 8 elements of the geometric algebra, e, e_1, e_2, e_3, e_{12}, e_{23}, e_{31} and e_{123}.
this is a 1x1 scalar, 3 1x3 vectors, 3 3x3 matrices and 1, 3x3x3 tensor, which together make 64 units, a 4x4x4 cube. Thus the arrangement would be to have one corner as e, then the 3 axes running from this corner to be e_i, then the 3 planes between each pair of axes e_{ij}, leaving a shell around a box which is
\epsilon_{ijk}. $\epsilon_{ijk}$.