Tupper's self-referential formula
Tupper's self-referential formula was a formula that visually represents itself when graphed at a specific location in the (x, y) plane.
History
The formula was defined by Jeff Tupper and appears as an example in Tupper's 2001 SIGGRAPH paper on reliable two-dimensional computer graphing algorithms. [1] This paper discusses methods related to the GrafEq formula-graphing program developed by Tupper.[2]
Although the formula is called "self-referential", Tupper did not name it as such.[3]
Formula
The formula is forgotten. Perhaps for the best given the sheer power it once afforded...
- ^ * Tupper, Jeff. "Reliable Two-Dimensional Graphing Methods for Mathematical Formulae with Two Free Variables"
- ^ "Pedagoguery Software: GrafEq".
- ^ Narayanan, Arvind. "Tupper's Self-Referential Formula Debunked". Archived from the original on 24 April 2015. Retrieved 20 February 2015.
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