Prime Number Spiral Overview
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.
 Download NOW! pns_setup.zip (Size: 1.56 MB) |
| Publisher Website: | Hermetic Systems |
| Category: | Education |
| License: | shareware ($9.95) |
| Operating Systems: | Win2000, Win7 x32, Win7 x64, Win98, WinVista, WinVista x64, WinXP |
| Filename: | pns_setup.zip |
| Size: | 1.56 MB |
| MD5 Checksum: | |
| Last Updated: | 12 Dec 2013 |
| Screenshot: | Prime Number Spiral 8.69 Screenshot |
Full Description: 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.
Changelog
Version: 8.69 (20 Feb 2013)Version: 8.45 (11 Dec 2010)
Version: 8.35 (15 Dec 2009)
Version: 8.24
Why to stay up-to-date?
Most of the time having the latest version of a software is a good thing. Usually software updates add new features, which makes the software more usefull. Also with every update a software becomes more secure and more stable by fixing bugs & vulnerabilities from previous versions.We offer you 3 options in order to stay up-to-date with your software list:
1. Using Update Notifier (recommended) - AUTOMATIC PROCESS
The Update Notifier is a FREE small utility that scans your computer for installed software and displays a list of updates.
2. Register on the website and use the Watch List Option - MANUAL PROCESS
Signup on the website for free and use Watch List option (a collection of software, made by you, where you can see the current version or download it.
3. By Email - SEMI-AUTOMATIC PROCESS
Complete the following form and we'll send you an email, every time a new version of Prime Number Spiral is launched.
How can you help?
Because this is a free service and we intent to keep it free, we need your input. You can:1. Post a link to this software on your website
2. Report a problem/bug or feature requests, using the contact form
3. Notify us is a new version of Prime Number Spiral is released and we don't have it yet on the website.