Turtle Graphics and T E X | a child can do it
Kees van der Laan · 1996
Papert’s Turtle Graphics in TEX provide the user with a new method for handling drawings via TEX alone. Being aware of explicit coordinates is replaced by the body language of drawing using the points of a compass. The approach is suited for highly systematic gures such as fractals. Example shapes include spiral, Pythagorean tree, binary tree, and rotated binary tree. The macros are part of BLUe’s format system and available from CTAN and the NTG’s 4AllTEX CD-ROM.