# Devil's staircase

From specialfunctionswiki

The Devil's staircase (also known as the Cantor function) is a function $c \colon [0,1] \rightarrow [0,1]$ can be expressed by the following rules:

- Write $x$ in base-3.
- If that representation of $x$ contains a $1$, replace every digit after the first $1$ with $0$'s.
- Replace all $2$'s with $1$'s.
- The resulting expansion defines $c(x)$.

# Properties

Devil's staircase is continuous

Devil's staircase is not absolutely continuous

# Videos

The Devil's Staircase | Infinite Series (19 May 2017)

Devil's Staircase (19 February 2017)

Intro Real Analysis, Lec 15, Uniform Continuity, Monotone Functions, Devil's Staircase, Derivatives (5 October 2016)

Cantor's staircase (25 November 2014)