Similar to ヘヴィサイドの階段関数

Askey–Gasper inequality

Ackermann function

Abramowitz and Stegun

Digital Library of Mathematical Functions

K-function

Basic hypergeometric series

Q-Pochhammer symbol

Richard Askey

Waleed Al-Salam

Euler integral

Gauss's continued fraction

Cantor function

Gudermannian function

Real analytic Eisenstein series

Stirling's approximation

Selberg integral

Chebyshev polynomials

Annales de Gergonne

P-adic Teichmüller theory

RSA (cryptosystem)

Witch of Agnesi

Abelian group

Category of abelian groups

Abelian category

Abelian variety

Abel's theorem

Abel equation