Epsilon

The Epsilon (Greek neuter Έψιλον, Ε majuscule, minuscule ε or ε ) is the fifth letter of the Greek alphabet and has a numerical value of 5

Origin

Sign E, originally comes from the Phoenician letter "he" and was used by the Greeks for the vowel "E". The name "e psilón " (gr. ἔ ψιλόν ) means " simple" or " unclothed e" (opposite the letter combination " αι " which has ψιλόν the same phonetic value as the ἔ since the Hellenistic period ).

Use

In phonetics epsilon an open e means
In mathematics ε is used to designate an arbitrarily small number greater than zero. Such a number is needed in the analysis in the definition of supremum and infimum limits for. This area is therefore known as " epsilontics ".
In some areas of mathematics describes ε ( x) is a Heaviside function,
And in the tensor ε is the Levi- Civita symbol.
Mathematicians and astronomers use ε (next s) for the numerical eccentricity of an ellipse, or elliptical orbit.
In astronomy, ε Most of the fourth- to sechsthellste star in each constellation, such Alioth = ε Ursae Majoris (the " handle of the Big Dipper " )
And the reference number of two meteor streams ( epsilon- Geminids and Epsilon Perseids )

Greek numerals Phonetic transcription#Types of notational systems Mathematical analysis Epsilon Ursae Majoris Epsilon (rocket) Empty string Strain (materials science) Chemistry Gamma Theta Kappa Lambda Omicron Pi (letter) Tau Heta Sho (letter) Koppa (letter)

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