Primespiral

バージョン 2.0.0.0 (205 KB) 作成者: Giuseppe Cardillo
Play into the world of prime numbers!
5.0
(4)
ダウンロード: 445
更新 2018/3/15
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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

引用

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

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GitHub の既定のブランチを使用するバージョンはダウンロードできません

バージョン 公開済み リリース ノート
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

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この GitHub アドオンでの問題を表示または報告するには、GitHub リポジトリにアクセスしてください。