Vertical bar
The vertical bar ( | ) is a computer character and glyph with various uses in mathematics, computing, and typography. It has many names, often related to particular meanings: Sheffer stroke (in logic), verti-bar, vbar, stick, vertical line, vertical slash, bar, obelisk, glidus,atau atau, or pipe. On a QWERTY keyboard, the combination of the "shift" key ⇧ Shift and the backslash "\" key outputs the character "|". Other keyboard layouts may use different combinations to output the vertical bar.
Usage
Mathematics
The vertical bar is used as a mathematical symbol in
, read "the absolute value of x".
, read "the norm of x one, x two"; though Unicode also provides a special double vertical line symbol U+2016: ‖x‖
indicates that the line 
is parallel to the line 
.
, read "the set of x such that x is less than two". Often a colon ':' is used instead of a vertical bar.
, read "the cardinality of the set S".
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Photos show how your Facebook feed has changed over the last 20 years
Business Insider 29 Mar 2025
The ticker came in 2011Facebook's now-defunct ticker feature appeared as a vertical bar on the right side of your screen ... It appeared as a bar on the right side of users' screens.
Student died in ‘tragic gym accident’ when 65kg weight fell on head
AOL 27 Mar 2025
Mohammed Farraj, a 21-year-old medical student, was using a Smith machine – a weightlifting apparatus with a bar that moves vertically on rails – at the university’s Sportspark gym on the evening of October 16, 2024.
Student killed by weight machine he was using at gym at University of East Anglia
The Daily Telegraph 26 Mar 2025
A medical student was killed when the bar of a gym weight machine struck his head, an inquest heard ... Det Sgt Robert Waring said that a Smith machine was a “horizontal bar bell which runs vertically up and down on rails”.
Student died after slipping while using gym’s weight machine, inquest told
AOL 26 Mar 2025
Detective sergeant Robert Waring said, in a statement read by the coroner’s officer, that a Smith machine is a “horizontal bar bell (which) runs vertically up and down on rails” ... “The bar carrying the weight came down.”.
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The chart consists of vertical blocks called lines or bars (green and red). A bull reversal happens when a green bar occurs with prices moving higher than the highest point of the last three red bars.
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It might cost you an arm and a leg ... AFP via Getty Images ... Getty Images ... Each dummy model had a different camera design — one was vertical with two lenses and the other three had rectangular bars, with either one or three lenses ... ....
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The Fayetteville Observer 18 Mar 2025
Archie-Jackson’s design, the top-most one shares many elements with the eventual Spring Lake flag including the placement of a seal in the middle; a vertical stripe along the hoist; and horizontal bars.
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Saugeye are identified by the dark bars or vertical spots between the spines of the first dorsal fin ... A black crappie has irregular blotches or spots along its sides, while a white crappie is distinguished by more uniform dark vertical stripes ... .
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