Fractals08 of 113
L-systems
Aristid Lindenmayer, 1968
A botanist’s grammar for growth. Start from a short word, rewrite every letter by a rule, repeat, then read the result as pen moves: F draws a step, + and − turn, brackets save and restore the pen. One rule draws a coastline, another a weed.
Plante: X → F+[[X]−X]−F[−FX]+X, F → FF, 25°
On mathcurve.com as Systèmes de Lindenmayer
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