Ŕ (minuscule: ŕ) is a letter of the Lower Sorbian and Slovak alphabets, Ukrainian Latin alphabet and Proto-Turkic orthography. It is formed from R with the addition of an acute.
The r rotunda ⟨ ꝛ ⟩, "rounded r", is a historical calligraphic variant of the minuscule (lowercase) letter Latin r used in full script-like typefaces, especially blackletters.
RGL (software package); GNU S; R core team; R Project; R-Project for Statistical Computing; R Project for Statistical Computing; R-Project; GNU R; R programming language; GNU-S; R programming; R language; RPro; ParallelR; RStat; R-Stat; R-stat; Rstat; R (language); R (program); R Statistics; R Foundation for Statistical Computing; R News (journal); R (software); R Development Core Team; R (programming); R (computer language); R code; R project; R-project; Rlang; R lang; R-project.org; R Open; Cran.r-project.org; R Foundation; 10.32614
R. Viswanathan, also known as Rengaraj Viswanathan, is a retired Indian diplomat, writer and speaker specializing in Latin American politics, markets, and culture.