epsila

Noun

epsilon (countable and uncountable, plural epsilons or epsila)

1. The fifth letter of the Greek alphabet, ε or Ε, preceded by delta (Δ, δ) and followed by zeta (Ζ, ζ).
2. In IPA, the phonetic symbol ɛ that represents the open-mid front unrounded vowel.
3. An arbitrarily small quantity.
   1. (colloquial) A small child.
4. (colloquial) Something negligible or insignificant.
   • Yes, we have to convert all the symbol names to upper case at startup, but that’s epsilon.
5. The percentage change in an option value with respect to the underlying dividend yield.