Hilbert Curve
The Hilbert Curve is a very famous curve with quite interesting characteristics. It is a one-dimensional line which completely fills a two-dimensional square without ever crossing itself. It is worth mentioning that this was already postulated in 1891 by David Hilbert.
Recursions : 5
Angle : 90°
Axiom : A
Rules : A=-BF+AFA+FB-
B=+AF-BFB-FA+
- We start with an u-shape.

- The middle third of the base line forms a "u" towards the center. The two side lines get also such a "u" on each end.

- We repeat this process on the newly emerged "u"'s over and over again,...

- ... we get this squarefilling figure.
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