Program ID:

16133

Author:

Hermetic Systems     All programs by this author

Downloads:

348

License:

Shareware

Cost:

$15.00 US

Operating Systems:

Size:

1412K

Release Status:

update

Last Updated:

2008-03-16

Our Rating:

Users Rating:

    Reviews (0)     Write review

Feedback:

Report broken download     Report spyware [?]

The Prime Number Spiral (a.k.a. the Ulam Spiral) is constructed as follows: Consider a rectangular grid. We start with the central point and arrange the positive integers in a spiral fashion (anticlockwise). The prime numbers are then marked. There is a tendency for the prime numbers to occur on diagonal lines, however far out into the spiral one goes. This is software is for exploring the Prime Number Spiral. It also (a) allows coloring of the prime numbers in various ways, (b) displays a random arrangement to compare with the primes and (c) shows how square and triangular numbers are located on the spiral.

Keywords: prime number spiral, prime numbers, primes, Ulam spiral, mathematical software

Recent Changes: Minor improvement to activation process.

Install Support: Install and Uninstall

Supported Languages: English, German

Additional Requirements: A video resolution of 800x600 or better.

PAD file URL: http://www.hermetic.ch/pns/pns.xml

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