2.1 Definitions and Elementary Properties (source code)

= 2.1 Definitions and Elementary Properties
{c}
{tag=Work by Frank W. J. Olver}
{tag=Work by Roderick S. C. Wong}

Chapter 2 contributors: <Frank W. J. Olver>, <Roderick S. C. Wong>. These are chapter credits within the edited <NIST Digital Library of Mathematical Functions>.https://dlmf.nist.gov/2[Chapter 2, Asymptotic Approximations, author credits]{ref}

Publisher: <National Institute of Standards and Technology>.

Online text: https://dlmf.nist.gov/2.1

Online reference release inspected: version 1.2.8, 15 September 2026. This date identifies the site release.

Cited passages: NIST Digital Library of Mathematical Functions, §2.1(iii), equations 2.1.13–2.1.15: fixed-order inverse-power expansions and uniqueness; §2.1(v): generalized asymptotic scales and expansions.