Sharp Smith’s bounds for the gamma function
نویسندگان
چکیده
Among various approximation formulas for the gamma function, Smith showed that [Formula: see text] which is a little-known but accurate and simple one. In this note, we prove that the function [Formula: see text] is strictly increasing and concave on [Formula: see text], which shows that Smith's approximation is just an upper one.
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ورودعنوان ژورنال:
دوره 2018 شماره
صفحات -
تاریخ انتشار 2018