Primespiral

Version 2.0.0.0 (205 ko) par Giuseppe Cardillo
Play into the world of prime numbers!
5.0
(4)
444 téléchargements
Mise à jour 15 mars 2018
Afficher la licence sur GitHub

Primespiral is a function to explore the distribution of prime numbers arranged into a spiral pattern.
The well-known Ulam spiral and the variant developed by Robert Sacks,
the Sacks spiral, show interesting geometric patterns in the positions of primes.
Syntax: primesout=primespiral(t)

Inputs:
t - is an integer number. The spiral will be plotted between 0 and t
If t is omitted, it will be set to 3571 (between 0 and 3571
there are 500 prime numbers).
Outputs:
primesout - the primes of the choosed family, between 0 and t.

The function will ask if you want to use the Ulam, Sacks, Vogel or Archimede spiral.
Then it will ask if you want to highlight a particular prime family.

Outputs:
The primes of the family you choosed between 0 and t

Created by Giuseppe Cardillo
giuseppe.cardillo-edta@poste.it

To cite this file, this would be an appropriate format:
Cardillo G. (2014) Primespiral: Play into the world of prime numbers!
http://www.mathworks.com/matlabcentral/fileexchange/46025

Citation pour cette source

Giuseppe Cardillo (2024). Primespiral (https://github.com/dnafinder/primespiral), GitHub. Récupéré le .

Compatibilité avec les versions de MATLAB
Créé avec R2014b
Compatible avec toutes les versions
Plateformes compatibles
Windows macOS Linux
Catégories
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Les versions qui utilisent la branche GitHub par défaut ne peuvent pas être téléchargées

Version Publié le Notes de version
2.0.0.0

each plot contains two boxes with descriptions of chosen spiral and prime family
Github link
1.6.0.0

The function is more compact and rational.
Archimede spiral was added (to shows that prime numbers greater then 7 have 1, 3, 7 or 9 as last digit)
1.5.0.0

some minor bugs correction and new primes families added
1.4.0.0

some other primes families were added
1.3.0.0

Ulam Spiral added;
more simplex algorithm
1.2.0.0

bug correction in Dihedral primes computation; minimal primes added
1.1.0.0

change in help section to correctly cite the file
1.0.0.0

Pour consulter ou signaler des problèmes liés à ce module complémentaire GitHub, accédez au dépôt GitHub.
Pour consulter ou signaler des problèmes liés à ce module complémentaire GitHub, accédez au dépôt GitHub.