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Posted By

Scooter on 07/05/08


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math


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Fermat numbers

 / Published in: PHP
 

URL: http://reusablecode.blogspot.com/2008/07/fermat-numbers.html

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  1. <?php
  2.     /*
  3.     Copyright (c) 2008, reusablecode.blogspot.com; some rights reserved.
  4.     
  5.     This work is licensed under the Creative Commons Attribution License. To view
  6.     a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ or
  7.     send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California
  8.     94305, USA.
  9.     */
  10.  
  11.     // Calculate the Fermat number for given x.
  12.     function fermat($x)
  13.     {
  14.         return 2^2^$x + 1;
  15.     }
  16. ?>

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