W. “Duality Principle.” From MathWorld —A Wolfram Web Resource. http://mathworld.wolfram.com/DualityPrinciple.html #geometric duality #duality principal #geometry #mathematics Loading... Hide notes 3 4 5 intothecontinuum A 3D orthographic projection of a 4D slice knot rotating while keeping two orthogonal planes fixed. Created with KnotPlot more #GIF #math #knot theory #4D #KnotPlot #projections Loading... Hide