Wallis Sieve

A compact set W_infty with area


created by punching a square hole of length 1/3 in the center of a square. In each of the eight squares remaining, punch out another hole of length 1/(3·5), and so on.

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Cite this as:

Weisstein, Eric W. "Wallis Sieve." From MathWorld--A Wolfram Web Resource.

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