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Introduction to Parallel Coordinates, point-line duality in the plane and
the representation of lines in RN by (N-1) points with 2 indices. A class
of special 2-flats, the "superplanes", with very convenient properties
enables the representation of hyper planes in RN by (N-1) points with N
indices. This leads to a translation-rotation duality and construction
algorithms for containment and intersections. The results are used in the
subsequent talk.
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