Greek alphabet
Αα Alpha Νν Nu Ββ Beta Ξξ Xi Γγ Gamma Οο Omicron Δδ Delta Ππ Pi Εε Epsilon Ρρ Rho Ζζ Zeta Σσς Sigma Ηη Eta Ττ Tau Θθ Theta Υυ Upsilon Ιι Iota Φφ Phi Κκ Kappa Χχ Chi Λλ Lambda Ψψ Psi Μμ Mu Ωω Omega
History
Archaic local variants Diacritics Ligatures Numerals ϛ(6) ϟ(90) ϡ(900)
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Bactrian Coptic Albanian
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Iota (uppercase/lowercaseΙ ι), is the letter of theGreek alphabet, used to represent the "i" sound inAncient andModern Greek. In the system ofGreek numerals, it has a value of 10. Letters that came from it include the RomanI and CyrillicІ.

Inmathematics, the lowercase${\displaystyle \iota }$ is used to represent theinclusion function inset theory.^[1] The term "iota" is also used to refer to an infinitesimal amount or an insignificant quantity.^[2][3]

• I (letter)

1. ↑"Greek/Hebrew/Latin-based Symbols in Mathematics".Math Vault. 2020-03-20. Retrieved2020-10-06.
2. ↑"Definition of IOTA".www.merriam-webster.com. Retrieved2020-10-06.
3. ↑"Iota Symbol in Greek Alphabet".www.greeksymbols.net. Retrieved2020-10-06.

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