Similar to 余接定理

Delta-ring

E (complexity)

EISPACK

Elementary Calculus: An Infinitesimal Approach

ElGamal signature scheme

Encyclopedia of Triangle Centers

ESPACE

Euler Mathematical Toolbox

EXPSPACE

EXPTIME

E8 (mathematics)

Fast Library for Number Theory

Fastest Fourier Transform in the West

Forum Geometricorum

FreeMat

Fσ set

F-coalgebra

F-space

F-algebra

GCD domain

GeoGebra

Great Internet Mersenne Prime Search

GiNaC

Gelfand–Naimark–Segal construction