In the modern Latin alphabet “R” is the 18th letter. Frequency of R’s usage in words among all other alphabet is 5.987%.This letter is often confused with some other letters in some scripts.
The initial Semitic letter is derived from the Egyptian hieroglyph for tp which represents “head”. It was added into the Greek and Latin alphabet as Ρ ῥῶ (rhô) and R respectively. Later Etruscan and Western Greek languages have added some strokes to distinguish the letter“R” from the the letter “p”.
|Egyptian hieroglyph||Phoenician resh||Etruscan R||Later Etruscan R||Greek Rho|
Pictorial representations from medieval ages
When “r” is used in pre-Carolingian minuscule scripts or National Hands, it has various forms in its appearance and can be easily confused with some other similar letters.
This form of “r” belongs to the 6th century’s half uncial script. In this type of representation “r” seems curvy and broad. The Curl that resides at the top was made to come down so it was created the image that resembles n.
The following representations shows “r” in various Carolingian scripts .
In the formal Gothic book hands, the letter r retains the Caroline minuscule form.
|Greek letter||Rho||Ρ ρ/ϱ|
|Cyrillic letter||Er||Р р|
|Cyrillic letter||Ya||Я я|
The following table specifies value of “R” in some character Encodings
Character Latin Latin
Encoding capital letter R Small letter r
Decimal hex Decimal hex
Unicode 82 0052 114 0072
ASCII 82 52 114 72
UTF-8 82 52 114 72
EBCDIC 217 D9 153 99
What Does “R” Stand for in various fields?
R Denotes the Registered Trademark (normally as written ®)
R represents set of all real numbers. ( or R)
R represents the database system of IBM
R represents the programming language.
R denotes Ramp Time in wireless communication
R represents the spectral resolution (astronomy).
R represents the Arginine which is an amino acid (chemistry)
R stands for Rontgen, which is a measurement unit for ionizing radiation.
R serves a measure of Relatedness, in biology.