In Morse code, it is called a "commat", consisting of the Morse code for that "A" and "C" which run collectively as 1 character: ▄ ▄▄▄ ▄▄▄ ▄ ▄▄▄ ▄ .
In Dyalog APL, @ is utilised as being a useful way to modify or change info at unique places within an array.
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On online boards with out threaded conversations, @ is often accustomed to denote a reply; for instance: @Jane to respond to a remark Jane produced earlier. in the same way, occasionally, @ is used for "focus" in email messages originally sent to another person.
In informal composing, for instance texting or on social media, the at indicator could be utilized to represent the phrase at
each source I found looked as if it would have another day for the origin of your "at" symbol, so I'm not intending to decide to a particular date. Let's just say it had been a long time ago—not less than in the center Ages.
Held now from the Vatican Apostolic Library, it options the @ image in place of the funds letter alpha "Α" as an Original inside the word Amen; having said that, The explanation behind it being used in this context remains to be mysterious. The evolution of the symbol as made use of currently just isn't recorded.
(ꝺ), Despite the fact that he in no way expounded within the proof for this conjecture. Other folks have pointed to the image’s historical use in French composing to signify à
it had been absent from the initial typewriter, invented in 1867, and to start with appeared with a typewriter in 1885. Its inclusion on keyboards was intermittent right until the late 20th century, when it get more info grew to become a more standard character in computing adhering to its inclusion during the American normal Code for information and facts Interchange (ASCII).
On some social websites platforms and community forums, usernames may very well be prefixed by having an @ (in the form @johndoe); this kind of username is usually referred to as a "cope with".[citation wanted]
Instead of meaning “at the cost of,” the professor states the “at” was an “a” that stood for “amphora,” a evaluate of quantity, which was wrapped inside a flowing circle that prolonged in the letter, something that was frequent into the script of enough time.
In up to date English usage, @ is really a commercial image, that means at and at the speed of or at the price of. it's got rarely been used in monetary ledgers, and isn't used in standard typography.[twelve]
claimed which the "at" image arises from shorthand with the Latin phrase "ad"—A.D.—which suggests “to, towards, or at." Scribes utilized to utilize it to listing selling prices on invoices and accounting sheets, as in twelve eggs AT one particular penny per egg.
inside of a Home windows Batch file, an @ At first of a line suppresses the echoing of that command. Put simply, is similar to ECHO OFF placed on the current line only. Commonly a Home windows command is executed and requires effect from the following line onward, but @ is actually a rare illustration of a command that requires impact immediately.