where
Perron's Formula
Explore with Wolfram|Alpha
References
Hardy, G. H. Ramanujan: Twelve Lectures on Subjects Suggested by His Life and Work, 3rd ed. New York: Chelsea, 1999.Hardy, G. H. and Riesz, M. The General Theory of Dirichlet's Series. New York: Dover, p. 12, 2005.Referenced on Wolfram|Alpha
Perron's FormulaCite this as:
Weisstein, Eric W. "Perron's Formula." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PerronsFormula.html