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A line number is a method to specify a sequence of characters in a text file. Learn how line numbers were used in early programming languages such as Fortran, COBOL, JOSS, and BASIC, and how they are rarely used in modern languages.
The numero sign or numero symbol, №, is a ligature of N and o, indicating ordinal numeration. Learn about its usage, history, and variations in different languages and countries.
A vinculum is a horizontal line used in mathematical notation for various purposes, such as grouping, indicating a line segment, a repeating decimal, or a complex conjugate. Learn about its history, usage, and encodings in Unicode and TeX.
An overline is a horizontal line drawn above the text, used for various purposes in mathematics, medicine, writing and other fields. Learn about the history, notation and meaning of overlines, as well as related symbols and terms.
Widows and orphans are single lines of text that dangle at the beginning or end of a block of text, or form a very short final line at the end of a paragraph. Learn the definitions, guidelines and techniques for avoiding them in typesetting and web-publishing.
Tally marks are a form of numeral used for counting, often with notched sticks called tally sticks. Learn about the origins, variations, and writing systems of tally marks, and how they are encoded in Unicode.
Learn how to use subscript and superscript characters in different contexts, such as chemistry, mathematics, fractions, and abbreviations. See examples, typesetting tips, and special characters for subscript and superscript.
The corresponding word is spelled ö in Swedish and øy in Norwegian. Ø is used as the party letter for the left-wing Danish political party Red-Green Alliance (Enhedslisten) . Ǿ (Ø with an acute accent , Unicode U+01FE) may be used in Danish on rare occasions to distinguish its use from a similar word with Ø.