## Square Peg Applet## (a.k.a. the Inscribed Square Applet) | ||||

If the applet doesn't show, here is a tentative alternative. | ||||

Conjecture [Square Peg Problem (a.k.a. Inscribed Square Problem), Toepliz 1911]:
Every continuous simple closed curve in the plane contains the four vertices of a square. The Square Peg Problem is only know to hold true for curves that are "smooth enough", e.g. C Conjecture [Rectangular Peg Problem]: Every smooth simple closed curve in the plane contains the four vertices of a rectangle with a prescribed aspect ratio r:1. The Rectangular Peg Problem (for smooth curves) is only known to hold true for r=1, that is, for squares. Links: - More software and animations by Jason Cantarella.
- Blog post on the history by Elizabeth Denne.
- A recent survey article by myself.
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