Question Number 90463 by M±th+et£s last updated on 23/Apr/20
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Commented by M±th+et£s last updated on 23/Apr/20
![H_k : harmonic number γ :Euler − mascheroni constant Ψ(x): digamma function](https://www.tinkutara.com/question/Q90464.png)
$${H}_{{k}} :\:{harmonic}\:{number} \\ $$$$\gamma\::{Euler}\:−\:{mascheroni}\:{constant} \\ $$$$\Psi\left({x}\right):\:{digamma}\:{function} \\ $$