Primespiral

Versione 2.0.0.0 (205 KB) da Giuseppe Cardillo
Play into the world of prime numbers!
5.0
(4)
449 download
Aggiornato 15 mar 2018
Visualizza la licenza su 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

Cita come

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

Compatibilità della release di MATLAB
Creato con R2014b
Compatibile con qualsiasi release
Compatibilità della piattaforma
Windows macOS Linux
Categorie
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Le versioni che utilizzano il ramo predefinito di GitHub non possono essere scaricate

Versione Pubblicato Note della release
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

Per visualizzare o segnalare problemi su questo componente aggiuntivo di GitHub, visita GitHub Repository.
Per visualizzare o segnalare problemi su questo componente aggiuntivo di GitHub, visita GitHub Repository.