Circle notation

Circle notation is a way of referring to the function Circle(n) or ⓝ, graphically displayed by n inside a circle, in Steinhaus-Moser Notation.Hugo Steinhaus. Mathematical Snapshots Courier Corporation, 1999. ISBN 9780486409146 p.28Circle Notation -- from Wolfram MathWorld It can also be written Pentagon(n), or, in the Hudelson version, Triangle(n). Circle(n) = Squaren(n) = Square(Square(...(Square(n))...)) (with n squares).
Circle notation growth rate is comparable to \(f_4(n)\) in the fast-growing hierarchy.
== Sources ==
== See also ==
*mega
*megistron
*Moser
*Steinhaus-Moser Notation
*Tiaokhiao's circle notation numbers
Category:Functions
ru:Нотация круга