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Windows Education Mathematics

Prime Number Spiral 7.80

Download Prime Number Spiral
Buy Prime Number Spiral 7.80
Rating: 0.0/5 (0 votes)
 
  Downloads : 3
  Size : 1.38 MB
    Publisher : Hermetic Systems | Other programs by this author
  License type : Shareware - 30 days free to try period  
    Price : $15.00 or 7.25 GBP
  Last update :
March 16, 2008
Minor Update
 
    OS : Win95, Win98, WinME, WinNT 4.x, WinXP, Windows2000, Windows2003, Windows Vista Starter, Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Business, Windows Vista Enterprise, Windows Vista Ultimate    
  Requirements : A video resolution of 800x600 or better.  
    Screenshot :    
   
 
   
Description (English) :    German Page
   

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.

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