Iota

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)
Use in other languages
Bactrian Coptic Albanian
Related topics
Use as scientific symbols
Book Category Commons
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Iota (uppercase/lowercase Ι ι), is the letter of the Greek alphabet, used to represent the "i" sound in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 10. Letters that came from it include the Roman I and Cyrillic І.

In mathematics, the lowercase ${\displaystyle \iota }$ is used to represent the inclusion function in set 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. Retrieved 2020-10-06.
2. ↑ "Definition of IOTA". www.merriam-webster.com. Retrieved 2020-10-06.
3. ↑ "Iota Symbol in Greek Alphabet". www.greeksymbols.net. Retrieved 2020-10-06.

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