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A quicker continued fraction approximation of the gamma function related to the Windschitl’s formula

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Abstract

In this paper, based on the Windschitl’s formula, a new continued fraction approximation and some inequalities for the gamma function are established. Finally, for demonstrating the superiority of our new series over the classical ones, some numerical computations are given.

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References

  1. Abramowitz, M., Stegun, I.A.: Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing, Applied Mathematics Series, vol. 55. Nation Bureau of Standards, Dover (1972)

  2. Alzer, H.: On some inequalities for the gamma and psi functions. Math. Comp. 66(217), 373–389 (1997)

    Article  MathSciNet  MATH  Google Scholar 

  3. Alzer, H.: Sharp upper and lower bounds for the gamma function. Proc. R. Soc. Edinb. A Math. 139, 709–718 (2009)

    Article  MathSciNet  MATH  Google Scholar 

  4. Burnside, W.: A rapidly convergent series for log N!. Messenger Math. 46, 157–159 (1917)

    MATH  Google Scholar 

  5. http://www.rskey.org/gamma.htm

  6. Nemes, G.: New asymptotic expansion for the Gamma function. Arch. Math. 95, 161–169 (2010)

    Article  MathSciNet  MATH  Google Scholar 

  7. Mortici, C.: Very accurate estimates of the polygamma functions. Asymptot. Anal. 68(3), 125–134 (2010)

    MathSciNet  MATH  Google Scholar 

  8. Mortici, C.: A quicker convergence toward the gamma constant with the logarithm term involving the constant e. Carpathian J. Math 26(1), 86–91 (2010)

    MathSciNet  MATH  Google Scholar 

  9. Mortici, C.: On new sequences converging towards the Euler-Mascheroni constant. Comp. Math. Appl. 59(8), 2610–2614 (2010)

    Article  MathSciNet  MATH  Google Scholar 

  10. Mortici, C.: Product approximations via asymptotic integration. Amer. Math. Monthly 117(5), 434–441 (2010)

    Article  MathSciNet  MATH  Google Scholar 

  11. Mortici, C.: A new Stirling series as continued fraction. Numer. Algorithms 56(1), 17–26 (2011)

    Article  MathSciNet  MATH  Google Scholar 

  12. Mortici, C.: A continued fraction approximation of the gamma function. J. Math. Anal. Appl. 402, 405–410 (2013)

    Article  MathSciNet  MATH  Google Scholar 

  13. Lu, D., Wang, X.: A generated approximation related to Gosper’s formula and Ramanujan’s formula. J. Math. Anal. Appl. 406, 287–292 (2013)

    Article  MathSciNet  MATH  Google Scholar 

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Correspondence to Lixin Song.

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Lu, D., Song, L. & Ma, C. A quicker continued fraction approximation of the gamma function related to the Windschitl’s formula. Numer Algor 72, 865–874 (2016). https://doi.org/10.1007/s11075-015-0070-y

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  • DOI: https://doi.org/10.1007/s11075-015-0070-y

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