Source: wikibot/buchholz-psi-functions
= Buchholz psi functions
{wiki=Buchholz_psi_functions}
The Buchholz psi functions, often denoted as \\(\\psi(s, a)\\), are a family of special functions that arise in the context of mathematical analysis, particularly in the study of analytic number theory and complex analysis. They are closely related to the concept of the "psi" or Digamma function, denoted by \\(\\psi(x)\\), which is the logarithmic derivative of the gamma function.