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Everything about Overline

Horizontal line immediately above a portion of writing

An overline, overscore, or overbar, is a typographical feature of a horizontal line drawn immediately above the text. In old mathematical notation, an overline was called a vinculum, a notation for grouping symbols which is expressed in modern notation by parentheses, though it persists for symbols under a radical sign. The original use in Ancient Greek was to indicate compositions of Greek letters as Greek numerals. In Latin, it indicates Roman numerals multiplied by a thousand and it forms medieval abbreviations (sigla). Marking one or more words with a continuous line above the characters is sometimes called overstriking, though overstriking generally refers to printing one character on top of an already-printed character. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: OverlineA 5-minute orientation
  2. Skim a recent paper: De Sitter microstates from T$$ \overline{T} $$ + Λ2 and the Hawking-Page transitionInfluential work since 2022
  3. Pick up a classic book: Analysis and Geometry in Several Complex VariablesThe most-reprinted book on the subject
  4. Read the landmark paper: Three-loop relation of quark $$\overline {MS} $$ and pole massesCited 450 times
  5. Go sideways: Symbol (typeface)A closely related topic
  6. Go sideways: Macron (diacritic)A closely related topic

📖 Definitions

Noun Synonym of overbar.

Verb Synonym of overbar.

Adjective Passing over a railway line.

🗂️ The subject at a glance

  1. Uses
  2. Implementations

🏆 Landmark papers (most cited)

🆕 Influential since 2022

📚 Books worth reading

Ranked by number of editions on Open Library, a rough measure of how lasting a book is.

🔗 Related topics