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log*nÊÇʲôÒâ˼£¿£¿£¿£¿ËüµÄ¶¨ÒåÊÇ
lg* n = min {i = 0: lg(i) n ¡Ü 1}.
The iterated logarithm is a very slowly growing function:
lg* 2 = 1,
lg* 4 = 2,
lg* 16 = 3,
lg* 65536 = 4,
lg*(265536) = 5.
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[ Last edited by cadick on 2009-12-11 at 01:09 ]
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Originally posted by cadick at 2009-12-11 01:09:


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