http://absurdistan.ch/L-System/
Thanks to Kevin Roast and his example of HTML5-Canvas L-System Generator: http://kevs3d.co.uk/dev/index.html
Hereby the Lindenmeier-Rule of F->F[+F]F[-F]F becomes F=F[+F]F[-F]F
Leaf Grow: https://commons.wikimedia.org/wiki/File:L-system-Leaf-grow.svg
For decades, Lewis Carroll’s Alice’s Adventures in Wonderland was usually interpreted with the upcoming Psychoanalysis of Sigmund Freud et al.
An article written by Melanie Bayley, 2009 suggest, that the author behind the pseudonym Lewis Carroll, mathematician Charles Dodgson had problems with the modern clergy of maths and especially with the up and coming Complex Numbers:
https://www.newscientist.com/article/mg20427391-600-alices-adventures-in-algebra-wonderland-solved/