From 23d0d936fc817961e0f8f19ca6033a51edb445fe Mon Sep 17 00:00:00 2001 From: markusde Date: Mon, 24 Oct 2022 20:56:53 -0700 Subject: god is dead --- entries/markusde/collatz/collatz.pdf | Bin 0 -> 86872 bytes entries/markusde/collatz/collatz.png | Bin 0 -> 27596 bytes entries/markusde/collatz/collatz.tex | 21 +++++++++++++++++++++ 3 files changed, 21 insertions(+) create mode 100644 entries/markusde/collatz/collatz.pdf create mode 100644 entries/markusde/collatz/collatz.png create mode 100644 entries/markusde/collatz/collatz.tex diff --git a/entries/markusde/collatz/collatz.pdf b/entries/markusde/collatz/collatz.pdf new file mode 100644 index 0000000..69fc363 Binary files /dev/null and b/entries/markusde/collatz/collatz.pdf differ diff --git a/entries/markusde/collatz/collatz.png b/entries/markusde/collatz/collatz.png new file mode 100644 index 0000000..afc8d8f Binary files /dev/null and b/entries/markusde/collatz/collatz.png differ diff --git a/entries/markusde/collatz/collatz.tex b/entries/markusde/collatz/collatz.tex new file mode 100644 index 0000000..b7febb2 --- /dev/null +++ b/entries/markusde/collatz/collatz.tex @@ -0,0 +1,21 @@ +\documentclass[12pt]{article} +\usepackage[landscape]{geometry} +\usepackage{amsmath} +\usepackage{amsfonts} +\usepackage{amsthm} +\renewcommand{\phi}{\varphi} +\begin{document} + +\noindent The least fixed point of +\begin{align*} + h & : (\mathbb{Z}_\bot \to \mathbb{Z}_\bot) \to (\mathbb{Z}_\bot \to \mathbb{Z}_\bot) \\ + h(F)(n) & = + \begin{cases} + 1 & n = 1 \\ + (\phi^{n/2} + (-\phi)^{-n/2})\, F_{n/2} & n \textrm{ is even} \\ + \sqrt[3]{\frac{\phi^{3n+1}-\phi F_{3n+1}}{10} + \frac{\sqrt{25 \phi^{3n+1} - 25\phi F_{3n+1} - 20}}{50}} + \sqrt[3]{\frac{\phi^{3n+1}-\phi F_{3n+1}}{10} - \frac{\sqrt{25 \phi^{3n+1} - 25\phi F_{3n+1} - 20}}{50}} & \textrm{otherwise} \\ + \end{cases} +\end{align*} +is the Fibonacci sequence if and only if the Collatz conjecture is true. + +\end{document} -- cgit v1.2.3-70-g09d2