English

An Elementary Proof of Stirling's Formula

Combinatorics 2023-10-10 v1

Abstract

Stirling's formula is a powerful asymptotic approximation of the factorial function. Many well-known proofs of this formula are grounded in integral calculus. In this paper, we present an alternative proof of Stirling's formula using only limits and the Wallis product.

Keywords

Cite

@article{arxiv.2310.04872,
  title  = {An Elementary Proof of Stirling's Formula},
  author = {Jakub Smolík},
  journal= {arXiv preprint arXiv:2310.04872},
  year   = {2023}
}

Comments

3 pages

R2 v1 2026-06-28T12:43:29.586Z