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Hyphen-minus – Wikipedia From the free encyclopedia Jump to navigation search Character primarily used represent a hyphen redirects here For other uses see disambiguation -Hyphen-minusIn UnicodeU D x d HYPHEN-MINUS HTML xa amp Different fromDifferent fromU HYPHEN U MINUS SIGN EN DASH EM The hyphen-minus is character in digital documents and computing minus sign or an en dash Typewriter keyboards early computer encodings had only one that looked like this so its design be compromise between different typographical appearances proper name rarely referred as according context where it being Contents Description Uses Typing Programming languages Command line Encoding See also Notes References edit plus signs compared use of single for both was made days fixed-width monospaced font typewriters displays However typesetting graphic there are distinct characters hyphens dashes Usage nonetheless persists many contexts well known easy enter on same location all common sets In proportional fonts usually size slightly bigger than smaller which width This results unattractive appearance when mixed with Also word processors will allow wrap after unlike treated mathematical symbol no typographically from any unspaced number letter often typed Boston London flight wanted Based old typewriter conventions pair — em some automatically convert can place box-drawing simulate horizontal alternated spaces make dashed indicates paper cut Most programming denoting subtraction negation It almost never indicate range due ambiguity Generally such Unicode not recognized marks beginning comment Likewise occasionally start signature block YAML triple — end section specifying command-line options convention mostly started by Unix Options might -x -y user specify using -xy Various implementations href wiki Getopt title getopt function two hyphen-minuses long option names –description much easier read while harder memorize write recent software does care about either doesn’t combinations single-letter require rearrange them they don’t match A double itself followed space more useful needs filename starts An just may lieu stdin glyph has code point ASCII value Look up Wiktionary dictionary Soft Box-drawing including drawing lines precise relationships depend typeface choices differ designers Jukka K Korpela explained O’Reilly p ISBN Fischer Eric Evolution Codes CiteSeerX Cite journal requires help French Nigel InDesign Type Professional Typography Adobe CS Press Retrieved July Ritchie Dennis c C Reference Manual PDF Bell Labs December Marlow Simon ed Haskell Language Report page needed vteTypographyPage Canons construction Column Even working Margin Page numbering Pagination Pull quote Recto verso Paragraph Alignment Leading River Sentence spacing Widows orphans CharacterTypeface anatomy Counter Diacritics Dingbat Glyph Initial Kerning Letter-spacing Ligature Rotation Subscript superscript Swash Text figures Tittle Capitalization All caps Camel case Letter Small Visual 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