Question Number 90463 by M±th+et£s last updated on 23/Apr/20
Commented by M±th+et£s last updated on 23/Apr/20
$${H}_{{k}} :\:{harmonic}\:{number} \\ $$$$\gamma\::{Euler}\:−\:{mascheroni}\:{constant} \\ $$$$\Psi\left({x}\right):\:{digamma}\:{function} \\ $$