# Hadjicostas's formula

> English word · Proper noun

## Definitions
1. A formula relating a certain double integral to values of the gamma function and the Riemann zeta function.

## Etymology
Named after Petros Hadjicostas.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/hadjicostas-s-formula