Primespiral

Play into the world of prime numbers!

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Actualizado 15 Mar 2018

De GitHub

Ver licencia en 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

Citar como

Giuseppe Cardillo (2023). Primespiral (https://github.com/dnafinder/primespiral), GitHub. Recuperado .

Compatibilidad con la versión de MATLAB
Se creó con R2014b
Compatible con cualquier versión
Compatibilidad con las plataformas
Windows macOS Linux
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Versión Publicado Notas de la versión
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

Para consultar o notificar algún problema sobre este complemento de GitHub, visite el repositorio de GitHub.
Para consultar o notificar algún problema sobre este complemento de GitHub, visite el repositorio de GitHub.