I (disambiguation): Difference between revisions

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I is the ninth letter of the Latin alphabet.

I or i may also refer to:

Language

I (pronoun), the first-person singular subject pronoun in English
I (Cyrillic), a letter used in almost all ancient and modern Cyrillic alphabets
Close front unrounded vowel, in the International Phonetic Alphabet and many other Latin-based orthographies
/i/, /ɨ/ and /ɪ/, in the International Phonetic Alphabet, three vowels represented by variations of the letter I
I (kana), one of the Japanese kana that each represent one mora

Mathematics

1 (number) in Roman numerals
i, the Imaginary unit, for which i² = −1
- Imaginary number
$i$ , an index variable in a matrix
$I$ (or $I n$ ), an identity matrix of indeterminate size (or of size $n$ )
$I x (a, b)$ , the regularized incomplete beta function (of a variable $x$ and parameters $a, b$ )
$I$ , the closed unit interval which contains all real numbers from 0 to 1 inclusive
$î$ (pronounced "i-hat"), the unit vector along the x-axis in Cartesian coordinates

Science

Biology

Haplogroup I (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
Haplogroup I (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup
Olfactory nerve, 1st cranial nerve, in anatomy

Chemistry

Iodine, by periodic table symbol
Isoleucine, by biochemistry symbol
Ionic strength (I), in a chemical solution

Physics and astronomy

Electric current (I, i)
Moment of inertia (I)
Luminous intensity (I)
Van 't Hoff factor (i),
Orbital inclination (i), in astronomy
I, in the Yerkes spectral classification scheme, the symbol for supergiants

Computing

i, a common generic index variable often used for looping constructs
<i>, an HTML element for marking italic type
.i, the common filename extension for a file that contains the output from a preprocessor
IBM i, a computer operating system
i-, a prefix for Apple products e.g. iMac, iPod, iPhone
i-, an Internet-related prefix used by Internet and electronic companies

Music

I, a diatonic function in tonal music theory
I (band), a Norwegian heavy metal band
i (label), a UK indie record label

Albums

Songs

"I" (Aphex Twin song)
"I" (Kendrick Lamar song)
"I", a song on Dehumanizer, an album by Black Sabbath
"I", a song on Weather Systems, an album by Andrew Bird
"I", a song on Coal Chamber, an album by Coal Chamber
"I", a song on Music from "The Elder", an album by KISS
"I", a song on Eternal, an album by Samael
"I (Who Have Nothing)", a 1966 Ben. E. King song also recorded by Tom Jones, who used the title for one of his albums

Media

I (film), a 2015 Tamil language Indian film
i, a suffix unit for video resolution (vertical Interlaced lines), as in 480i or 1080i
i (TV network), the former name of ION Television
I band, the range of radio frequencies from 8 GHz to 10 GHz in the electromagnetic spectrum
I, the ITU prefix allocated to Italy in radio communication
I, in QAM modulation schemes, the in-phase communications channel
I, in the YIQ colorspace commonly used with the NTSC television encoding scheme, the color-difference channel which is in-phase with the subcarrier
i (newspaper), a British newspaper
i, the international symbol for visitor or tourist information; see ISO 7001

Characters

I, a character in Adventure into Fear who acted as a guide for Morbius, the Living Vampire
Goddess I, a Mayan deity
Hou-i, or I, a heroic archer and hunter in Chinese mythology

Vehicles

Italy, in the list of international license plate codes
Italy, by aircraft registration prefix
Mitsubishi i, a Japanese kei car

Other uses

I-Foundation, a Hindu and ISKCON charity in charge of state-funded Hindu faith schools in the United Kingdom
Interest rate (i), in economics
Investment (I), in economics

This disambiguation page lists articles associated with the title I.
If an internal link led you here, you may wish to change the link to point directly to the intended article.

@@ Line 13: / Line 13: @@
 ==Mathematics==
 * [[1 (number)]] in Roman numerals
-* [[Imaginary unit]] (''i''), for which ''i''<sup>2</sup> = −1
+* {{mvar|i}}, the [[Imaginary unit]], for which {{math|1=''i''<sup>2</sup> = −1}}
 ** [[Imaginary number]]
+* {{mvar|i}}, an index variable in a [[matrix (mathematics)|matrix]]
-* ''I'' (or ''I''<sub>''n''</sub>), an [[identity matrix]] of indeterminate size (or of size ''n'')
+* {{mvar|I}} (or {{math|''I''<sub>''n''</sub>}}), an [[identity matrix]] of indeterminate size (or of size {{mvar|n}})
-* ''i'', an index variable in a [[matrix (mathematics)|matrix]]
-* ''I''<sub>''x''</sub>(''a'',''b''), the [[regularized incomplete beta function]] (of a variable ''x'' and parameters ''a'',''b'')
+* {{math|''I''<sub>''x''</sub>(''a'',''b'')}}, the [[regularized incomplete beta function]] (of a variable {{mvar|x}} and parameters {{math|''a'',''b''}})
-* ''I'', the closed [[unit interval]] which contains all real numbers from 0 to 1 inclusive
+* {{mvar|I}}, the closed [[unit interval]] which contains all real numbers from 0 to 1 inclusive
-* <math>{\hat{\imath}}</math> (pronounced "i-hat"), the [[unit vector]] along the ''x''-axis in Cartesian coordinates
+* {{mvar|î}} (pronounced "i-hat"), the [[unit vector]] along the ''x''-axis in Cartesian coordinates
 ==Science==
@@ Line 43: / Line 43: @@
 * <code>i</code>, a common generic index variable often used for [[program loops|looping constructs]]
 * <code>&lt;i&gt;</code>, an [[HTML element]] for marking italic type
-* .i, the common filename extension for a file that contains the output from a [[preprocessor]]
+* <code>.i</code>, the common filename extension for a file that contains the output from a [[preprocessor]]
 * [[IBM i]], a computer operating system
 * i-, a prefix for [[Apple Inc.|Apple]] products e.g. iMac, iPod, iPhone
 * i-, an [[Internet-related prefixes#Use and meanings|Internet-related prefix]] used by Internet and electronic companies
 ==Music==