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Iota

Not to be confused with Jota or DOTA.
This article is about Greek iota. For Latin iota, see ɩ. For Cyrillic Iota, see Iota (Cyrillic). For other uses, see Iota (disambiguation).
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(December 2009) ()

Iota (uppercase: Ι, lowercase: ι; Greek:ιώτα) is the ninth letter of the Greek alphabet. It was derived from the Phoenician letter Yodh. Letters that arose from this letter include the Latin I and J, the Cyrillic І (І, і), Yi (Ї, ї), and Je (Ј, ј), and iotated letters (e.g. Yu (Ю, ю)). In the system of Greek numerals, iota has a value of 10.

Iota represents the sound . In early forms of ancient Greek, it occurred in both long[iː] and short[i] versions, but this distinction was lost in Koine Greek. Iota participated as the second element in falling diphthongs, with both long and short vowels as the first element. Where the first element was long, the iota was lost in pronunciation at an early date, and was written in polytonic orthography as iota subscript, in other words as a very small ι under the main vowel. Examples include ᾼ ᾳ ῌ ῃ ῼ ῳ. The former diphthongs became digraphs for simple vowels in Koine Greek.

The word is used in a common English phrase, "not one iota", meaning "not the slightest amount". This refers to iota, the smallest letter, or possibly yodh, י, the smallest letter in the Hebrew alphabet. The English word jot derives from iota. The German, Portuguese, and Spanish name for the letter J (Jot / jota) is derived from iota.

Contents

  • In some programming languages (e.g., A+, APL, C++, Go), iota (either as the lowercase symbol or the identifier iota) is used to represent and generate an array of consecutive integers. For example, in APL ⍳4 gives 1 2 3 4.
  • The lowercase iota symbol is sometimes used to write the imaginary unit, but more often Roman i or j is used.
  • In mathematics, the inclusion map of one space into another is sometimes denoted by the lowercase iota.
  • In logic, the lowercase iota denotes the definite descriptor.
  • The lowercase iota symbol has Unicode code point U+03B9 and the uppercase U+0399.

Greek Iota / Ypogegrammeni

Character information
Preview Ι ι
Unicode name GREEK CAPITAL LETTER IOTA GREEK SMALL LETTER IOTA MODIFIER LETTER SMALL IOTA TURNED GREEK SMALL LETTER IOTA
Encodings decimal hex decimal hex decimal hex decimal hex
Unicode 921 U+0399 953 U+03B9 7589 U+1DA5 8489 U+2129
UTF-8 206 153 CE 99 206 185 CE B9 225 182 165 E1 B6 A5 226 132 169 E2 84 A9
Numeric character reference Ι Ι ι ι ᶥ ᶥ ℩ ℩
Named character reference Ι ι ℩
DOS Greek 136 88 160 A0
DOS Greek-2 173 AD 227 E3
Windows 1253 201 C9 233 E9
TeX \iota


Character information
Preview ͺ ͅ
Unicode name GREEK YPOGEGRAMMENI COMBINING GREEK YPOGEGRAMMENI GREEK PROSGEGRAMMENI
Encodings decimal hex decimal hex decimal hex
Unicode 890 U+037A 837 U+0345 8126 U+1FBE
UTF-8 205 186 CD BA 205 133 CD 85 225 190 190 E1 BE BE
Numeric character reference ͺ ͺ ͅ ͅ ι ι

Coptic Iaude

Character information
Preview
Unicode name COPTIC CAPITAL LETTER IAUDE COPTIC SMALL LETTER IAUDE
Encodings decimal hex decimal hex
Unicode 11410 U+2C92 11411 U+2C93
UTF-8 226 178 146 E2 B2 92 226 178 147 E2 B2 93
Numeric character reference Ⲓ Ⲓ ⲓ ⲓ

Latin Iota

Character information
Preview Ɩ ɩ
Unicode name LATIN CAPITAL LETTER IOTA LATIN SMALL LETTER IOTA
Encodings decimal hex decimal hex
Unicode 406 U+0196 617 U+0269
UTF-8 198 150 C6 96 201 169 C9 A9
Numeric character reference Ɩ Ɩ ɩ ɩ

Cyrillic Iota

Character information
Preview
Unicode name CYRILLIC CAPITAL LETTER IOTA CYRILLIC SMALL LETTER IOTA
Encodings decimal hex decimal hex
Unicode 42566 U+A646 42567 U+A647
UTF-8 234 153 134 EA 99 86 234 153 135 EA 99 87
Numeric character reference Ꙇ Ꙇ ꙇ ꙇ

Technical Iota

Character information
Preview
Unicode name APL FUNCTIONAL SYMBOL IOTA APL FUNCTIONAL SYMBOL IOTA UNDERBAR
Encodings decimal hex decimal hex
Unicode 9075 U+2373 9080 U+2378
UTF-8 226 141 179 E2 8D B3 226 141 184 E2 8D B8
Numeric character reference ⍳ ⍳ ⍸ ⍸

Mathematical Iota

Character information
Preview 𝚰 𝛊 𝛪 𝜄 𝜤 𝜾
Unicode name MATHEMATICAL
CAPITAL IOTA
MATHEMATICAL BOLD
SMALL IOTA
MATHEMATICAL ITALIC
CAPITAL IOTA
MATHEMATICAL ITALIC
SMALL IOTA
MATHEMATICAL BOLD ITALIC
CAPITAL IOTA
MATHEMATICAL BOLD ITALIC
SMALL IOTA
Encodings decimal hex decimal hex decimal hex decimal hex decimal hex decimal hex
Unicode 120496 U+1D6B0 120522 U+1D6CA 120554 U+1D6EA 120580 U+1D704 120612 U+1D724 120638 U+1D73E
UTF-8 240 157 154 176 F0 9D 9A B0 240 157 155 138 F0 9D 9B 8A 240 157 155 170 F0 9D 9B AA 240 157 156 132 F0 9D 9C 84 240 157 156 164 F0 9D 9C A4 240 157 156 190 F0 9D 9C BE
UTF-16 55349 57008 D835 DEB0 55349 57034 D835 DECA 55349 57066 D835 DEEA 55349 57092 D835 DF04 55349 57124 D835 DF24 55349 57150 D835 DF3E
Numeric character reference 𝚰 𝚰 𝛊 𝛊 𝛪 𝛪 𝜄 𝜄 𝜤 𝜤 𝜾 𝜾


Character information
Preview 𝝞 𝝸 𝞘 𝞲
Unicode name MATHEMATICAL SANS-SERIF
BOLD CAPITAL IOTA
MATHEMATICAL SANS-SERIF
BOLD SMALL IOTA
MATHEMATICAL SANS-SERIF
BOLD ITALIC CAPITAL IOTA
MATHEMATICAL SANS-SERIF
BOLD ITALIC SMALL IOTA
Encodings decimal hex decimal hex decimal hex decimal hex
Unicode 120670 U+1D75E 120696 U+1D778 120728 U+1D798 120754 U+1D7B2
UTF-8 240 157 157 158 F0 9D 9D 9E 240 157 157 184 F0 9D 9D B8 240 157 158 152 F0 9D 9E 98 240 157 158 178 F0 9D 9E B2
UTF-16 55349 57182 D835 DF5E 55349 57208 D835 DF78 55349 57240 D835 DF98 55349 57266 D835 DFB2
Numeric character reference 𝝞 𝝞 𝝸 𝝸 𝞘 𝞘 𝞲 𝞲

These characters are used only as mathematical symbols. Stylized Greek text should be encoded using the normal Greek letters, with markup and formatting to indicate text style.

Wikimedia Commons has media related toIota (letter).
Look up Ι or ι in Wiktionary, the free dictionary.
  1. Victor Parker, A History of Greece, 1300 to 30 BC, (John Wiley & Sons, 2014), 67.
  2. "Greek numbers". History.mcs.st-and.ac.uk. Retrieved2014-05-04.
  3. see Koine Greek phonology
  4. "Jot | Define Jot at Dictionary.com". Dictionary.reference.com. Retrieved2014-05-04.
  5. Parent, Sean (2019-01-04). "#iotashaming". sean-parent.stlab.cc. Retrieved2020-03-11.
  6. "The Go Programming Language Specification". The Go Authors. November 18, 2016. Retrieved2017-08-08.

Iota
Iota Language Watch Edit 160 160 Redirected from I Not to be confused with Jota or DOTA This article is about Greek iota For Latin iota see ɩ For Cyrillic Iota see Iota Cyrillic For other uses see Iota disambiguation This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Iota news newspapers books scholar JSTOR December 2009 Learn how and when to remove this template message Iota aɪ ˈ oʊ t e uppercase I lowercase i Greek iwta is the ninth letter of the Greek alphabet It was derived from the Phoenician letter Yodh 1 Letters that arose from this letter include the Latin I and J the Cyrillic I I i Yi Yi yi and Je Ј ј and iotated letters e g Yu Yu yu In the system of Greek numerals iota has a value of 10 2 Iota represents the sound i In early forms of ancient Greek it occurred in both long iː and short i versions but this distinction was lost in Koine Greek 3 Iota participated as the second element in falling diphthongs with both long and short vowels as the first element Where the first element was long the iota was lost in pronunciation at an early date and was written in polytonic orthography as iota subscript in other words as a very small i under the main vowel Examples include ᾼ ᾳ ῌ ῃ ῼ ῳ The former diphthongs became digraphs for simple vowels in Koine Greek 3 The word is used in a common English phrase not one iota meaning not the slightest amount This refers to iota the smallest letter or possibly yodh י the smallest letter in the Hebrew alphabet The English word jot derives from iota 4 The German Portuguese and Spanish name for the letter J Jot jota is derived from iota Contents 1 Symbol 2 Character encodings 2 1 Greek Iota Ypogegrammeni 2 2 Coptic Iaude 2 3 Latin Iota 2 4 Cyrillic Iota 2 5 Technical Iota 2 6 Mathematical Iota 3 ReferencesSymbol EditIn some programming languages e g A APL C 5 Go 6 iota either as the lowercase symbol or the identifier iota is used to represent and generate an array of consecutive integers For example in APL 4 gives 1 2 3 4 The lowercase iota symbol is sometimes used to write the imaginary unit but more often Roman i or j is used In mathematics the inclusion map of one space into another is sometimes denoted by the lowercase iota In logic the lowercase iota denotes the definite descriptor The lowercase iota symbol has Unicode code point U 03B9 and the uppercase U 0399 Character encodings EditGreek Iota Ypogegrammeni Edit Character information Preview I i ᶥ Unicode name GREEK CAPITAL LETTER IOTA GREEK SMALL LETTER IOTA MODIFIER LETTER SMALL IOTA TURNED GREEK SMALL LETTER IOTAEncodings decimal hex decimal hex decimal hex decimal hexUnicode 921 U 0399 953 U 03B9 7589 U 1DA5 8489 U 2129UTF 8 206 153 CE 99 206 185 CE B9 225 182 165 E1 B6 A5 226 132 169 E2 84 A9Numeric character reference amp 921 wbr amp x399 wbr amp 953 wbr amp x3B9 wbr amp 7589 wbr amp x1DA5 wbr amp 8489 wbr amp x2129 wbr Named character reference amp Iota amp iota amp iiota DOS Greek 136 88 160 A0DOS Greek 2 173 AD 227 E3Windows 1253 201 C9 233 E9TeX iota Character information Preview ͺ ιUnicode name GREEK YPOGEGRAMMENI COMBINING GREEK YPOGEGRAMMENI GREEK PROSGEGRAMMENIEncodings decimal hex decimal hex decimal hexUnicode 890 U 037A 837 U 0345 8126 U 1FBEUTF 8 205 186 CD BA 205 133 CD 85 225 190 190 E1 BE BENumeric character reference amp 890 wbr amp x37A wbr amp 837 wbr amp x345 wbr amp 8126 wbr amp x1FBE wbr Coptic Iaude Edit Character information Preview Ⲓ ⲓUnicode name COPTIC CAPITAL LETTER IAUDE COPTIC SMALL LETTER IAUDEEncodings decimal hex decimal hexUnicode 11410 U 2C92 11411 U 2C93UTF 8 226 178 146 E2 B2 92 226 178 147 E2 B2 93Numeric character reference amp 11410 wbr amp x2C92 wbr amp 11411 wbr amp x2C93 wbr Latin Iota Edit Character information Preview Ɩ ɩUnicode name LATIN CAPITAL LETTER IOTA LATIN SMALL LETTER IOTAEncodings decimal hex decimal hexUnicode 406 U 0196 617 U 0269UTF 8 198 150 C6 96 201 169 C9 A9Numeric character reference amp 406 wbr amp x196 wbr amp 617 wbr amp x269 wbr Cyrillic Iota Edit Character information Preview Ꙇ ꙇUnicode name CYRILLIC CAPITAL LETTER IOTA CYRILLIC SMALL LETTER IOTAEncodings decimal hex decimal hexUnicode 42566 U A646 42567 U A647UTF 8 234 153 134 EA 99 86 234 153 135 EA 99 87Numeric character reference amp 42566 wbr amp xA646 wbr amp 42567 wbr amp xA647 wbr Technical Iota Edit Character information Preview Unicode name APL FUNCTIONAL SYMBOL IOTA APL FUNCTIONAL SYMBOL IOTA UNDERBAREncodings decimal hex decimal hexUnicode 9075 U 2373 9080 U 2378UTF 8 226 141 179 E2 8D B3 226 141 184 E2 8D B8Numeric character reference amp 9075 wbr amp x2373 wbr amp 9080 wbr amp x2378 wbr Mathematical Iota Edit Character information Preview 𝚰 𝛊 𝛪 𝜄 𝜤 𝜾Unicode name MATHEMATICAL CAPITAL IOTA MATHEMATICAL BOLD SMALL IOTA MATHEMATICAL ITALIC CAPITAL IOTA MATHEMATICAL ITALIC SMALL IOTA MATHEMATICAL BOLD ITALIC CAPITAL IOTA MATHEMATICAL BOLD ITALIC SMALL IOTAEncodings decimal hex decimal hex decimal hex decimal hex decimal hex decimal hexUnicode 120496 U 1D6B0 120522 U 1D6CA 120554 U 1D6EA 120580 U 1D704 120612 U 1D724 120638 U 1D73EUTF 8 240 157 154 176 F0 9D 9A B0 240 157 155 138 F0 9D 9B 8A 240 157 155 170 F0 9D 9B AA 240 157 156 132 F0 9D 9C 84 240 157 156 164 F0 9D 9C A4 240 157 156 190 F0 9D 9C BEUTF 16 55349 57008 D835 DEB0 55349 57034 D835 DECA 55349 57066 D835 DEEA 55349 57092 D835 DF04 55349 57124 D835 DF24 55349 57150 D835 DF3ENumeric character reference amp 120496 wbr amp x1D6B0 wbr amp 120522 wbr amp x1D6CA wbr amp 120554 wbr amp x1D6EA wbr amp 120580 wbr amp x1D704 wbr amp 120612 wbr amp x1D724 wbr amp 120638 wbr amp x1D73E wbr Character information Preview 𝝞 𝝸 𝞘 𝞲Unicode name MATHEMATICAL SANS SERIF BOLD CAPITAL IOTA MATHEMATICAL SANS SERIF BOLD SMALL IOTA MATHEMATICAL SANS SERIF BOLD ITALIC CAPITAL IOTA MATHEMATICAL SANS SERIF BOLD ITALIC SMALL IOTAEncodings decimal hex decimal hex decimal hex decimal hexUnicode 120670 U 1D75E 120696 U 1D778 120728 U 1D798 120754 U 1D7B2UTF 8 240 157 157 158 F0 9D 9D 9E 240 157 157 184 F0 9D 9D B8 240 157 158 152 F0 9D 9E 98 240 157 158 178 F0 9D 9E B2UTF 16 55349 57182 D835 DF5E 55349 57208 D835 DF78 55349 57240 D835 DF98 55349 57266 D835 DFB2Numeric character reference amp 120670 wbr amp x1D75E wbr amp 120696 wbr amp x1D778 wbr amp 120728 wbr amp x1D798 wbr amp 120754 wbr amp x1D7B2 wbr These characters are used only as mathematical symbols Stylized Greek text should be encoded using the normal Greek letters with markup and formatting to indicate text style References EditWikimedia Commons has media related to Iota letter Look up I or i in Wiktionary the free dictionary Victor Parker A History of Greece 1300 to 30 BC John Wiley amp Sons 2014 67 Greek numbers History mcs st and ac uk Retrieved 2014 05 04 a b see Koine Greek phonology Jot Define Jot at Dictionary com Dictionary reference com Retrieved 2014 05 04 Parent Sean 2019 01 04 iotashaming sean parent stlab cc Retrieved 2020 03 11 The Go Programming Language Specification The Go Authors November 18 2016 Retrieved 2017 08 08 Retrieved from https en wikipedia org w index php title Iota amp oldid 1052041861, wikipedia, wiki, book,

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