His pioneering work on fractals in the 1910s includes not only the Sierpiński triangle but also the Sierpiński carpet, a square fractal. He was a key figure of the Warsaw School of Mathematics, which ...

We see then that a fractal is composed of infinitely many pieces, all of which look the same. Some fractals are mundane, like a solid square (you can cut it up into 4 smaller squares and each of these ...