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In TeX, \epsilon ( ) denotes the lunate form, while \varepsilon ( ) denotes the epsilon number. Unicode versions 2.0.0 and onwards use ɛ as the lowercase Greek epsilon letter, [5] but in version 1.0.0, ϵ was used. [6] The lunate or uncial epsilon provided inspiration for the euro sign, €.
The letter epsilon can occur in two equally frequent stylistic variants, either shaped ('lunate epsilon', like a semicircle with a stroke) or (similar to a reversed number 3). The symbol ϵ (U+03F5) is designated specifically for the lunate form, used as a technical symbol.
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.
Archaic letter denoting the presence of /h/ prior to the vowel, with a high pitch on a short vowel or rising pitch on a long vowel Ἓἓ: Epsilon with grave and rough breathing: Archaic letter denoting the presence of /h/ prior to the vowel, with a normal or low pitch Ε̠ε̠: Epsilon with macron below: Arvanitika letter for /ə/ [7] Ζ̌ζ̌ ...
Historically, upper-case letters were used for representing points in geometry, and lower-case letters were used for variables and constants. Letters are used for representing many other types of mathematical object. As the number of these types has increased, the Greek alphabet and some Hebrew letters have also come to be used.
Other names include the permutation symbol, antisymmetric symbol, or alternating symbol, which refer to its antisymmetric property and definition in terms of permutations. The standard letters to denote the Levi-Civita symbol are the Greek lower case epsilon ε or ϵ, or less commonly the Latin lower case e.
Having pointed letters can mean that you are intense, intelligent, curious and aggressive. People who write with connected letters are associated with being logical and systematic.
Meaning SI unit of measure alpha: alpha particle: angular acceleration: radian per second squared (rad/s 2) fine-structure constant: unitless beta: velocity in terms of the speed of light c: unitless beta particle: gamma: Lorentz factor: unitless photon: gamma ray: shear strain: radian