The Ulam Spiral and its generalizations






Jean-François COLONNA

www.lactamme.polytechnique.fr

jean-francois.colonna@polytechnique.edu
CMAP (Centre de Mathématiques APpliquées) UMR CNRS 7641, École polytechnique, Institut Polytechnique de Paris, CNRS, 91120 Palaiseau, France

[Site Map, Help and Search [Plan du Site, Aide et Recherche]]
[The Y2K Bug [Le bug de l'an 2000]]
[Do you believe that Real Numbers exist for a computer and that floating point computations are safe? [Croyez-vous que les Nombres Réels existent dans un ordinateur et que les calculs flottants sont sûrs?]]
[Please, visit A Virtual Machine for Exploring Space-Time and Beyond, the place where you can find thousands of pictures and animations between Art and Science]
(CMAP28 WWW site: this page was created on 04/25/2012 and last updated on 04/16/2023 20:53:31 -CEST-)



[en français/in french


Abstract: What is the Ulam Spiral and how can it be extended?


Keywords: Ulam Spiral, Spirale d'Ulam, Prime Numbers, Nombres Premiers.



Contents of this page:






Copyright © Jean-François Colonna, 2012-2023.
Copyright © CMAP (Centre de Mathématiques APpliquées) UMR CNRS 7641 / École polytechnique, Institut Polytechnique de Paris, 2012-2023.