Tupper's self-referential formula - Wikipedia, the free encyclopedia

Tupper's self-referential formula is a self-referentialformula defined by Jeff Tupper that, when graphed in two dimensions, can visually reproduce the formula itself. It is used in various maths and computer science courses as an exercise in graphing formulae.

The formula was first published in his 2001 SIGGRAPH paper that discusses methods related to the GrafEq formula-graphing program he developed.