Fitxategi:Collatz-graph-50-no27.svg

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English: Directed graph showing the orbits of the odd numbers less than 50 (with the exceptions of 27, 31, 41, and 47, because they would make it too tall) under the Collatz map.

For a larger graph, see :Image:Collatz-graph-300.svg.

Created with Graphviz, with the help of this Python program:

 dotfile = file('collatz-graph.dot', 'w')
 
 limit = 50
 
 def f(n):
   while n % 2 == 0: # divide by 2 until it's odd
     n /= 2
   n = 3*n + 1
   while n % 2 == 0:
     n /= 2
   return n
 
 explored = set([1,27,31,41,47])
 
 dotfile.write('digraph {\n')
 
 for n in range(3, limit, 2): # odd numbers
   while n not in explored:
     dotfile.write(str(n) + ' -> ')
     explored.add(n)
     n = f(n)
   dotfile.write(str(n) + ';\n')
 
 dotfile.write('}\n')
Data 2007ko ekainaren 10a (Jatorrizko igoera-data)
Jatorria Transferred from en.wikipedia to Commons by Derlay using CommonsHelper.
Egilea Keenan Pepper at ingelesa Wikipedia

Lizentzia

Public domain This work has been released into the public domain by its author, Keenan Pepper at ingelesa Wikipedia. This applies worldwide.
Estatu batzuetan beharbada hori ez da legez posible izango. Halakoetan:
Keenan Pepper grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Jatorrizko igoera erregistroa

The original description page was here. All following user names refer to en.wikipedia.
  • 2007-06-10 20:25 Keenan Pepper 393×1045× (12301 bytes) Directed graph showing the orbits of the odd numbers less than 50 (with the exceptions of 27, 31, 41, and 47, because they would make it too tall) under the [[:en:Collatz conjecture|Collatz map]]. Created with [[:en:Graphviz|Graphviz]], with the help of

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10 ekaina 2007

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image/svg+xml

checksum ingelesa

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393 pixel

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oraingoa12:03, 25 maiatza 201012:03, 25 maiatza 2010 bertsioaren iruditxoa393 × 1.045 (12 KB)Derlay{{Information |Description={{en|Directed graph showing the orbits of the odd numbers less than 50 (with the exceptions of 27, 31, 41, and 47, because they would make it too tall) under the Collatz map. For a larger graph, see [

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