A compact set with area
created by punching a square hole of length in the center of a square. In each of the eight squares remaining, punch out another hole of length , and so on.
A compact set with area
created by punching a square hole of length in the center of a square. In each of the eight squares remaining, punch out another hole of length , and so on.
Weisstein, Eric W. "Wallis Sieve." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/WallisSieve.html