ε

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Greek lc epsilon.png
Character ε U+03B5, ε
Name GREEK SMALL LETTER EPSILON
Block Greek and Coptic
δ [U+03B4] [U+03B6] ζ

Translingual[edit]

Symbol[edit]

ε

  1. (sciences) emittance, extinction coefficient. (Can we add an example for this sense?)
  2. (mathematics) A small number, usually in company of δ.
    • For each ε > 0, there exists a δ > 0, ...
  3. (mathematics, computer science) empty string

See also[edit]


Greek[edit]

Etymology[edit]

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

Letter[edit]

ε ‎(e) ‎(lowercase, uppercase Ε)

  1. Lower case epsilon, the fifth letter of the ancient and modern Greek alphabets. Its name was εἶ, later ἒ ψιλόν, and presently έψιλον. It represents roughly the same sound in both alphabets: in Modern Greek, a somewhat lowered variant of the mid front unrounded vowel: /e/ or /e̞/. It is preceded by δ and followed by ϝ.

See also[edit]

Derived terms[edit]