Lévy CurveAlso known on the "C curve" when drawn on its sideWritten by Paul Bourke February 2018 First reported by Ernesto Cesàro in 1906 and Georg Faber in 1910 but named after Paul Lévy who studied its properties in more depth. It can be formulated as both a L-System and IFS (Iterated Function System, both as provided below. L-System formulationaxiom = F F -> -F++F- angle = 45  6th iteration, 316 line segments
 10th iteration, 5116 line segments
 14th iteration, 81916 line segments
Iterated Function System formulation 
 1000 million points. Bounds: -0.5 <= x <= 0.5, and -0.5 <= y <= 0.0125 where z = x+iy
 Density shaded. 10,000 million points
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