In mathematics, Steinhaus's polygon notation is a means of expressing certain large numbers.

means nn

means "n in n triangles"

means "n in n squares"

Steinhaus called Mega and Megiston. Note that is already a very large number, since = square(square(2)) = square(triangle(triangle(2)) = square(triangle(22)) = square(triangle(4)) = square(44) = square(256) = triangle(triangle(triangle(...triangle(256)...))) [256 triangles] = triangle(triangle(triangle(...triangle(256256)...))) [255 triangles] = triangle(triangle(triangle(...triangle(3.2 × 10616)...))) [254 triangles] = ...

See also

External