self plotting

Tupper’s self-referential formula is a formula that visually represents itself when graphed at a specific location in the (x, y) plane.

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 GrafE formula-graphing program developed by Tupper.[2]

Although the formula is called “self-referential“, Tupper did not name it as such.

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