ε

Definition from Wiktionary, a free dictionary

	Upper case form
English name epsilon
Wikipedia article on ε

Contents 1 Translingual 1.1 Etymology 1.2 Symbol 1.2.1 Derived terms 1.2.2 Descendants

[edit] Translingual

[edit] Etymology

Derived from its majuscule counterpart Ε, from the Phoenician letter 𐤄, he.

[edit] Symbol

ε

1. Lower case epsilon, the fifth letter of the ancient Greek alphabet. Its name was εἶ, later ἒ ψιλόν, and it represented a somewhat lowered variant of the mid front unrounded vowel: IPA: /e/ or /e̞/, SAMPA: /e/. It is preceded by δ and followed by ϝ.
2. Lower case epsilon, the fifth letter of the modern Greek alphabet. Its name is έψιλον and it represents a somewhat lowered variant of the mid front unrounded vowel: IPA: /e/ or /e̞/, SAMPA: /e/. It is preceded by δ and followed by ζ.
3. (sciences) emittance, extinction coefficient.
4. (mathematics) A small number, usually in company of δ.
   • For each ε > 0, there exists a δ > 0, ...

[edit] Derived terms

See also epsilon.

• ε', ,ε
• e, E (Roman)
• е, Е (Cyrillic)
• є, Є (Cyrillic)
• э, Э (Cyrillic)
• ⲉ, Ⲉ (Coptic)
• ɛ, ɜ, ɞ (IPA)
• ∈ (mathematics)

[edit] Descendants