Testwiki:Reference desk/Archives/Mathematics/2012 February 13

{| width = "100%"

|- ! colspan="3" align="center" | Mathematics desk |- ! width="20%" align="left" | < February 12 ! width="25%" align="center"|<< Jan | February | Mar >> ! width="20%" align="right" |Current desk > |}

Welcome to the Wikipedia Mathematics Reference Desk Archives
The page you are currently viewing is a transcluded archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages.

February 13

Exact solution to the Hénon map

Does a closed form solution exist that can give both $x_n$ and $y_n$ given $x_0$, $y_0$, $a$, $b$, and $n$? --Melab±1 ☎ 23:29, 13 February 2012 (UTC)

Probably not. The closest I can find is this article [1], which gives exact solutions to a stabilized henon map (the topic is "controlling chaos"). I know you are interested in closed form solutions, but part of why these systems are studied is that it is very computationally cheap to generate orbits. If you want to know the state at n=1000,or even 10^10, these can be computed in a matter of seconds on a modern computer. SemanticMantis (talk) 15:35, 14 February 2012 (UTC)