R































































R
R r
(See below)
Writing cursive forms of R
Usage
Writing system Latin script
Type
Alphabetic and Logographic
Language of origin Latin language
Phonetic usage [r]
[ɾ]
[ɹ]
[ʀ]
[ʁ]
[ʝ˞]
(Table)
(English variations)
/ɑːr/
Unicode value U+0052, U+0072
Alphabetical position 18
History
Development

D1



  • Resh

    • Res

      • Ρ ρ

        • 𐌓 Early Greek Rho

          • Greek Rho 01.svg

            • Greek Rho 03.svg

              • Greek Rho 03.svgCursive R-rotunda
                • R r








Time period ~50 to present
Descendants  • ℟
 • ℞
 • ®
 • Ɍ
 • ᚱ
 • 𐍂
 • Ꭱ
Sisters
Р
ר
ر
ܪ

𐎗
𐡓

Ռ ռ
Ր ր


Variations (See below)
Other
Other letters commonly used with
r(x), rh











R (named ar/or /ɑːr/[1]) is the 18th letter of the modern English alphabet and the ISO basic Latin alphabet.




Contents






  • 1 History


    • 1.1 Antiquity


    • 1.2 Cursive




  • 2 Name


  • 3 Use in writing systems


    • 3.1 English


    • 3.2 Other languages


    • 3.3 Other systems




  • 4 Related characters


    • 4.1 Descendants and related characters in the Latin alphabet


    • 4.2 Calligraphic variants in the Latin alphabet


    • 4.3 Ancestors and siblings in other alphabets


    • 4.4 Abbreviations, signs and symbols




  • 5 Physics


  • 6 Encoding


  • 7 Other representations


  • 8 See also


  • 9 References


  • 10 External links





History























Egyptian hieroglyph
tp (D1)
Phoenician
Resh

Archaic Greek/Old Italic
Rho

Roman square capital
R
15th century Florentine
inscriptional capital
blackletter (Fraktur)
German kurrent
modern cursive
(D'Nealian 1978)
D1


PhoenicianR-01.png

Greek Rho 01.svgGreek Rho 03.svgGreek Rho 06.svgGreek Rho round-tack.svg

R Agrippa.png

RomanR-01.png

Fraktur letter R.png

Kurrent R.svg

R cursiva.gif


Antiquity




The word prognatus as written on the Sarcophagus of Lucius Cornelius Scipio Barbatus (280 BC) reveals the full development of the Latin R by that time; the letter P at the same time still retains its archaic shape distinguishing it from Greek or Old Italic rho.


The original Semitic letter may have been inspired by an Egyptian hieroglyph for tp, "head".[citation needed] It was used for /r/ by Semites because in their language, the word for "head" was rêš (also the name of the letter). It developed into Greek 'Ρ' ῥῶ (rhô) and Latin R.


The descending diagonal stroke develops as a graphic variant in some Western Greek alphabets (writing rho as Greek Rho 03.svg), but it was not adopted in most Old Italic alphabets; most Old Italic alphabets show variants of their rho between a "P" and a "D" shape, but without the Western Greek descending stroke.
Indeed, the oldest known forms of the Latin alphabet itself of the 7th to 6th centuries BC, in the Duenos and the Forum inscription, still write r using the "P" shape of the letter.
The Lapis Satricanus inscription shows the form of the Latin alphabet around 500 BC. Here, the rounded, closing Π shape of the p and the Ρ shape of the r have become difficult to distinguish.
The descending stroke of the Latin letter R has fully developed by the 3rd century BC, as seen in the Tomb of the Scipios sarcophagus inscriptions of that era. From around 50 AD, the letter P would be written with its loop fully closed, assuming the shape formerly taken by R.




Late medieval illuminated initial



Cursive




18th-century example of use of r rotunda in English blackletter typography




Letter R from the alphabet by Luca Pacioli, in De divina proportione (1509)


The minuscule (lowercase) form (r) developed through several variations on the capital form.
Along with Latin minuscule writing in general, it developed ultimately from Roman cursive via the uncial script of Late Antiquity into the Carolingian minuscule of the 9th century.


In handwriting, it was common not to close the bottom of the loop but continue into the leg, saving an extra pen stroke. The loop-leg stroke shortened into the simple arc used in the Carolingian minuscule and until today.


A calligraphic minuscule r, known as r rotunda (ꝛ), was used in the sequence or, bending the shape of the r to accommodate the bulge of the o (as in oꝛ as opposed to or). Later, the same variant was also used where r followed other lower case letters with a rounded loop towards the right (such as b, h, p) and to write the geminate rr (as ꝛꝛ). Use of r rotunda was mostly tied to blackletter typefaces, and the glyph fell out of use along with blackletter fonts in English language contexts mostly by the 18th century.


Insular script used a minuscule which retained two downward strokes, but which did not close the loop ("Insular r", ꞃ); this variant survives in the Gaelic type popular in Ireland until the mid-20th century (but now mostly limited to decorative purposes).



Name


The name of the letter in Latin was er (/ɛr/), following the pattern of other letters representing continuants, such as F, L, M, N and S. This name is preserved in French and many other languages. In Middle English, the name of the letter changed from /ɛr/ to /ar/, following a pattern exhibited in many other words such as farm (compare French ferme), and star (compare German Stern).


In Hiberno-English the letter is called /ɒr/ or /ɔːr/.[2][3]



The letter R is sometimes referred to as the littera canina (canine letter). This phrase has Latin origins: the Latin R was trilled to sound like a growling dog. A good example of a trilling R is the Spanish word for dog, perro.[4]


In William Shakespeare's Romeo and Juliet, such a reference is made by Juliet's nurse in Act 2, scene 4, when she calls the letter R "the dog's name". The reference is also found in Ben Jonson's English Grammar.[5]



Use in writing systems




English


The letter ⟨r⟩ is the eighth most common letter in English and the fourth-most common consonant (after ⟨t⟩, ⟨n⟩, and ⟨s⟩).[6]


The letter ⟨r⟩ is used to form the ending "-re", which is used in certain words such as centre in some varieties of English spelling, such as British English. Canadian English also uses the "-re" ending, unlike American English, where the ending is usually replaced by "-er" (center). This does not affect pronunciation.



Other languages


⟨r⟩ represents a rhotic consonant in many languages, as shown in the table below.












































Alveolar trill [r]

Listen
some dialects of British English or in emphatic speech, standard Dutch, Finnish, Galician, German in some dialects, Hungarian, Icelandic, Indonesian, Italian, Czech, Javanese, Lithuanian, Latvian, Latin, Norwegian mostly in the northwest, Polish, Portuguese (traditional form), Romanian, Russian, Scots, Slovak, Swedish, Sundanese, Welsh; also Catalan, Spanish and Albanian ⟨rr⟩

Alveolar approximant [ɹ]

Listen

English (most varieties), Dutch in some Dutch dialects (in specific positions of words), Faroese, Sicilian

Alveolar flap / Alveolar tap [ɾ]

Listen

Portuguese, Catalan, Spanish and Albanian ⟨r⟩, Turkish, Dutch, Italian, Venetian, Galician, Leonese, Norwegian, Irish, Māori

Voiced retroflex fricative [ʐ]

Listen

Norwegian around Tromsø; Spanish used as an allophone of /r/ in some South American accents; Hopi used before vowels, as in raana, "toad", from Spanish rana; Hanyu Pinyin transliteration of Standard Chinese.

Retroflex approximant [ɻ]

Listen
some English dialects (in the United States, South West England, and Dublin), Gutnish

Retroflex flap [ɽ]

Listen

Norwegian when followed by <d>, sometimes in Scottish English

Uvular trill [ʀ]

Listen

German stage standard; some Dutch dialects (in Brabant and Limburg, and some city dialects in The Netherlands), Swedish in Southern Sweden, Norwegian in western and southern parts, Venetian only in Venice area.

Voiced uvular fricative [ʁ]

Listen

German, Danish, French, standard European Portuguese ⟨rr⟩, standard Brazilian Portuguese ⟨rr⟩, Puerto Rican Spanish ⟨rr⟩ and 'r-' in western parts, Norwegian in western and southern parts.

Other languages may use the letter ⟨r⟩ in their alphabets (or Latin transliterations schemes) to represent rhotic consonants different from the alveolar trill. In Haitian Creole, it represents a sound so weak that it is often written interchangeably with ⟨w⟩, e.g. 'Kweyol' for 'Kreyol'.


Brazilian Portuguese has a great number of allophones of /ʁ/ such as [χ], [h], [ɦ], [x], [ɣ], [ɹ] and [r], the latter three ones can be used only in certain contexts ([ɣ] and [r] as ⟨rr⟩; [ɹ] in the syllable coda, as an allophone of /ɾ/ according to the European Portuguese norm and /ʁ/ according to the Brazilian Portuguese norm). Usually at least two of them are present in a single dialect, such as Rio de Janeiro's [ʁ], [χ], [ɦ] and, for a few speakers, [ɣ].



Other systems


The International Phonetic Alphabet uses several variations of the letter to represent the different rhotic consonants; ⟨r⟩ represents the alveolar trill.



Related characters



Descendants and related characters in the Latin alphabet



  • R with diacritics: Ŕ ŕ Ɍ ɍ Ř ř Ŗ ŗ Ṙ ṙ Ȑ ȑ Ȓ ȓ Ṛ ṛ Ṝ ṝ Ṟ ṟ Ꞧ ꞧ Ɽ ɽ R̃ r̃ ᵲ[7][7][8]


  • International Phonetic Alphabet-specific symbols related to R: ɹ ɺ ɾ ɻ ɽ ʀ ʁ ʶ ˞ ʴ


  • Obsolete and nonstandard symbols in the International Phonetic Alphabet: ɼ ɿ


  • Uralic Phonetic Alphabet-specific symbols related to R:[9]


    • .mw-parser-output .monospaced{font-family:monospace,monospace}
      U+1D19
      .mw-parser-output .smallcaps{font-variant:small-caps}
      LATIN LETTER SMALL CAPITAL REVERSED R



    • U+1D1A

      LATIN LETTER SMALL CAPITAL TURNED R



    • U+1D3F
      ᴿ
      MODIFIER LETTER CAPITAL R



    • U+1D63

      LATIN SUBSCRIPT SMALL LETTER R




  • Teuthonista phonetic transcription-specific symbols related to R:[10]



    • U+AB45

      LATIN SMALL LETTER STIRRUP R



    • U+AB46

      LATIN LETTER SMALL CAPITAL R WITH RIGHT LEG



    • U+AB47

      LATIN SMALL LETTER R WITHOUT HANDLE



    • U+AB48

      LATIN SMALL LETTER DOUBLE R



    • U+AB49

      LATIN SMALL LETTER R WITH CROSSED-TAIL



    • U+AB4A

      LATIN SMALL LETTER DOUBLE R WITH CROSSED-TAIL



    • U+AB4B

      LATIN SMALL LETTER SCRIPT R



    • U+AB4C

      LATIN SMALL LETTER SCRIPT R WITH RING



  • ⱹ : Turned r with tail is used in the Swedish Dialect Alphabet[11]

  • Other variations of R used for phonetic transcription: ʳ ʵ



Calligraphic variants in the Latin alphabet



  • Ꝛ ꝛ : R rotunda

  • Ꞃ ꞃ : "Insular" R (Gaelic type)



Ancestors and siblings in other alphabets


  • 𐤓 : Semitic letter Resh, from which the following letters derive
    • Ρ ρ : Greek letter Rho, from which the following letters derive

      • 𐌓 : Old Italic letter R, the ancestor of modern Latin R
        • ᚱ : Runic letter Raido


      • Р р : Cyrillic letter Er

      • 𐍂 : Gothic letter Reda





Abbreviations, signs and symbols



  • ℟: symbol for "response" in liturgy

  • ℞ : Medical prescription Rx

  • ₽ : Ruble symbol

  • ® : Registered trademark symbol



Physics































R

electrical resistance

ohm (Ω)

Ricci tensor
unitless

radiancy


gas constant

joule per mole-kelvin (J/molK)

r

radius vector (position)

meter (m)
r
radius of rotation or distance between two things such as the masses in Newton's law of universal gravitation

meter (m)


Encoding























































Character R r
Unicode name LATIN CAPITAL LETTER R
    LATIN SMALL LETTER R
Encodings decimal hex decimal hex
Unicode 82 U+0052 114 U+0072
UTF-8 82 52 114 72
Numeric character reference R R r r

EBCDIC family
217 D9 153 99

ASCII 1
82 52 114 72


1Also for encodings based on ASCII, including the DOS, Windows, ISO-8859 and Macintosh families of encodings.


Other representations













NATO phonetic

Morse code
Romeo

·–·















ICS Romeo.svg

Semaphore Romeo.svg

Sign language R.svg

⠗

Signal flag

Flag semaphore

American manual alphabet (ASL fingerspelling)

Braille
dots-1235



See also


  • Guttural R


References





  1. ^ "R", Oxford English Dictionary || /ˈɔr/ 2nd edition (1989); "ar", op. cit; a pronunciation /ɔːr/ is common in Ireland.[1]


  2. ^ "Analysis of selected contemporary Irish dialects" (PDF). Digilib.k.utb.cz. Retrieved 7 November 2017..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"""""""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}


  3. ^ "How to speak English like the Irish - Fluent in 3 months - Language Hacking and Travel Tips". Fluentin3months.com. 24 March 2010. Retrieved 7 November 2017.


  4. ^ "A Word A Day: Dog's letter". Wordsmith.org. Retrieved 2012-01-17.


  5. ^ Shakespeare, William; Horace Howard Furness; Frederick Williams (1913). Romeo and Juliet. Lippincott. p. 189.


  6. ^ "Frequency Table". Math.cornell.edu. Retrieved 7 November 2017.


  7. ^ ab Constable, Peter (2003-09-30). "L2/03-174R2: Proposal to Encode Phonetic Symbols with Middle Tilde in the UCS" (PDF). Unicode.org.


  8. ^ Constable, Peter (2004-04-19). "L2/04-132 Proposal to add additional phonetic characters to the UCS" (PDF). Unicode.org.


  9. ^ Everson, Michael; et al. (2002-03-20). "L2/02-141: Uralic Phonetic Alphabet characters for the UCS" (PDF). Unicode.org.


  10. ^ Everson, Michael; Dicklberger, Alois; Pentzlin, Karl; Wandl-Vogt, Eveline (2011-06-02). "L2/11-202: Revised proposal to encode "Teuthonista" phonetic characters in the UCS" (PDF). Unicode.org.


  11. ^ Lemonen, Therese; Ruppel, Klaas; Kolehmainen, Erkki I.; Sandström, Caroline (2006-01-26). "L2/06-036: Proposal to encode characters for Ordbok över Finlands svenska folkmål in the UCS" (PDF). Unicode.org.




External links




  • Media related to R at Wikimedia Commons


  • The dictionary definition of R at Wiktionary


  • The dictionary definition of r at Wiktionary










Popular posts from this blog

Xamarin.iOS Cant Deploy on Iphone

Glorious Revolution

Dulmage-Mendelsohn matrix decomposition in Python