Archivo: Collatz-graph-50-no27

Descripción: 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')
Título: Collatz-graph-50-no27
Créditos: Transferido desde en.wikipedia a Commons por Derlay usando CommonsHelper.
Autor(a): Keenan Pepper de Wikipedia en inglés
Términos de Uso: Dominio Público
Licencia: Dominio Público
¿Se exige la atribución?: No