Softwares and Drivers for Specific Models

ASUS Eee PC
Dell Mini
Lenovo IdeaPad
Acer Aspire
Samsung N
Toshiba
Gigabyte
iiView
Gigabyte

ASUS Eee PC Specific

Dell Mini Specific

Lenovo Specific

Acer Aspire Specific

Samsung N Specific

Toshiba Specific

Gigabyte Specific

iiView Specific

MSI Wind Specific

HP Mini
HP Mini
Sony Vaio W
LG Netbook
Windows XP Downloads
Ad Space for Rent
Rss Subscribe
Facebook Fan Page
Follow us at Twitter

HP Mini Specific

Fujitsu Specific

Sony Vaio Specific

LG
Specific

Windows XP Softwares

Advertise Here!

Rss Subscribe

Facebook Page

Follow us @Twitter


Tablet PC Software Downloads

Prime Number Spiral 8.69


Ultrabook / Netbook Software Downloads » Education Softwares » Prime Number Spiral 8.69
Bookmark and Share Subscribe

Date Added:

Feb 23, 2013 03:17 AM

Publisher's Description:

An interesting prime number spiral was discovered in 1963 by Stanislaw M. Ulam, and is now called "the Ulam spiral". It reveals a strange property of the prime numbers.


A positive integer (1, 2, 3, ... ) greater than 1 is called prime if its only divisors are 1 and itself. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, ... The series is infinite, since there is no largest prime number. The proof of this goes back to the ancient Greek mathematician Euclid.

Download the
trial version
Testimonials
Purchase a
user license

The Ulam spiral of prime numbers is constructed as follows: Consider a rectangular grid. We start with the central point and arrange the positive integers in a spiral fashion (anticlockwise) as at below left. The prime numbers are then marked (here with blue boxes). Since the primes occur in an irregular manner in the sequence of numbers one might expect that in this grid they would occur more or less at random, and so form something like a random pattern. But, on the contrary, there is a clear tendency for the prime numbers to form diagonal lines. This can be seen more clearly in the image below right, in which each of the 70,255 pixels corresponds to a position in the number sequence and the primes are marked by white pixels. This pattern is puzzling, since no complete explanation has been given for why the prime numbers should line up in this way.

Screenshot:

Screenshot

Documentation:

http://www.hermetic.ch/pns/pns.htm

Last Download:

Oct 13, 2017 05:34 AM

Downloads:

101

OS:

Windows

Rating:

(0 Ratings)  Must Register to Post Rating

Advertisements



Please Register to Post Comments

Prime Number Spiral 8.69


Report Broken Download Link

Some of our Latest and Top Downloads

Recent Downloads

1. Iperius Backup 4.3.3 (Added on 9/6/2015)
2. Unreal Commander 2.02.1098 (Added on 9/6/2015)
3. Far Manager 3.0.4413 Beta / 3.0.4400 Stable (Added on 9/6/2015)
4. PhonerLite 2.27 (Added on 9/6/2015)
5. Eraser 6.2.0.2970 (Added on 9/6/2015)
6. Phoner 3.0 (Added on 9/6/2015)
7. Pocket Radio Player 090415 (Added on 9/6/2015)
8. Notepad++ Portable 6.8.3 (Added on 9/6/2015)
9. Notepad++ 6.8.3 (Added on 9/6/2015)
10. Miranda IM Portable 0.10.35 (Added on 9/6/2015)

Latest Recommendations

1. Gesture 2Launch Full Version {Free for Limited Time} (Added on 2/27/2013)
2. Classic Shell v3.6.5 - Windows 8 Start Menu like Windows 7 (Added on 2/16/2013)
3. Opera 12.11 (Added on 12/9/2012)
4. Metro UI Tweaker for Windows 8 (Added on 11/30/2012)
5. WinSetupFromUSB 1.0 Beta8 (Added on 4/30/2012)
6. SpeedyFox 2.0 (Added on 3/25/2012)
7. My CPU Monitor 1.00 (Added on 3/12/2012)
8. Yahoo! Messenger 11.5.0.192 (Added on 3/3/2012)
9. Mozilla Firefox 10.0 Final (Added on 2/7/2012)
10. BasicMouse and BasicBoard 6.1.2.0 (Added on 2/1/2012)

Most Downloaded

1. WinSetupFromUSB. 0.2.3 (69166 Downloads)
2. Netbook Resolution Customizer Version 1.0 Beta2 (67266 Downloads)
3. Acer Aspire One D255 Wireless LAN Driver Win7 9.0.0.173 (62636 Downloads)
4. Acer Aspire One D270 Wireless LAN Driver Windows 7 32bit 9.2.0.469 (46327 Downloads)
5. BasicMouse and BasicBoard 6.1.2.0 (42758 Downloads)
6. Samsung N150 Wireless LAN,REALTEK Windows 7(32bit) 1676.12.1113.2009 (39507 Downloads)
7. Acer Aspire One D270 WebCam Application Windows 7 32bit 1.5.2108.00 (36618 Downloads)
8. AsTray Plus 1.4.0 BETA1 (36096 Downloads)
9. Acer Aspire One D255 VGA Driver Win7 8.14.10.2117 (32305 Downloads)
10. Toshiba Mini NB505 Realtek Wireless LAN Driver Windows 7 (32bit) 2.00.0013.L_101021 (31780 Downloads)

Alexa Rank

  
RSS Subscribers

Rss Subscribe
     
Contact Us

Submit your Software