retro-tree-of-pythagoras

Tree of Pythagoras in BBC Basic

sources

• Albert Koelmans, It's all Greek, Acorn User, 1987-02, AU055, p. 95 -- 99
• Patrick McTiernan, Acorn Forum "Greek Revision", Acorn User, 1987-06, AU059, p. 55
• https://en.wikipedia.org/wiki/Pythagoras_tree_(fractal)

how to run

• open this: https://bbc.godbolt.org/
• paste the code into jsbeeb and RUN it

output

optimised-readable.bas makes two plots.

First:

DATA 640,110,0,10,45

Second:

DATA 375,90,150,15,30

Alternate version: alternate-readable.bas