• DocumentCode
    1351839
  • Title

    Calculating the Factorials of Large Numbers

  • Author

    Szirtes, Thomas

  • Author_Institution
    Spar Aerospace Limited; 1700 Ormont Drive; Weston, Ontario, M9L 2W7 CANADA.
  • Issue
    4
  • fYear
    1984
  • Firstpage
    313
  • Lastpage
    314
  • Abstract
    The sharpened Stirling´s formula approximates well the factorial of a large number N. The relative error of this approximation decreases with the magnitude of N and is about 10¿7 for the factorial of 101. The upper limit of the method is about N = 108. The program listing and execution protocol of the routine for a HP41C programmable calculator are presented.
  • Keywords
    Displays; Dynamic range; Protocols; Reliability engineering; Approximation of factorial; Factorial; Stirling´s formula;
  • fLanguage
    English
  • Journal_Title
    Reliability, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9529
  • Type

    jour

  • DOI
    10.1109/TR.1984.5221838
  • Filename
    5221838