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  • Last update: 5 years ago
  • Total downloads: 97
  • Operating system: Linux, Mac OS X, Win All, BSD, Solaris
  • Publisher: Bruce (14 other programs)
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scripts default iconPerfect Number Generator (Scripts) Publisher's description

It calculates perfect even #'s with 2^(p-1)*(2^p - 1) where p and (2^p - 1)
%are prime.

It calculates perfect even #'s with 2^(p-1)*(2^p - 1) where p and (2^p - 1)
%are prime. A subsequent run yields a faster run-time. The code is fully
%vectorized and hence cleaner than previous versions of the function.
%NB: if (2^p - 1) is a Mersenne prime then a perfect number has been found.
%SYNTAX: >> perf_finalv4(P) % where P is an integer scalar in
%useful inclusive range [2..31].
%i.e. run showing first 8 perfect numbers...
%>> p = perf_finalv4(31);
%>> [p(:,3)]
% ans =
% 6
% 28
% 496
% 8128
% 33550336
% 8589869056
% 137438691328
% 2.30584300813995e+018

System Requirements:

MATLAB 7.9 (2009b)
Program Release Status: New Release
Program Install Support: Install and Uninstall

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