2018
DOI: 10.1186/s13660-018-1870-0
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Windschitl type approximation formulas for the gamma function

Abstract: In this paper, we present four new Windschitl type approximation formulas for the gamma function. By some unique ideas and techniques, we prove that four functions combined with the gamma function and Windschitl type approximation formulas have good properties, such as monotonicity and convexity. These not only yield some new inequalities for the gamma and factorial functions, but also provide a new proof of known inequalities and strengthen known results.

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Cited by 5 publications
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“…Finally, they presented four new Windschitl-type approximation formulas [20]. Nemes [21] deduced that…”
Section: Introductionmentioning
confidence: 99%
“…Finally, they presented four new Windschitl-type approximation formulas [20]. Nemes [21] deduced that…”
Section: Introductionmentioning
confidence: 99%