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The less-than sign is a mathematical symbol that denotes an inequality between two values. The widely adopted form of two equal-length strokes connecting in an acute angle at the left, <, has been found in documents dated as far back as the 1560s.
The minus–plus sign, ∓, is generally used in conjunction with the ± sign, in such expressions as x ± y ∓ z, which can be interpreted as meaning x + y − z or x − y + z (but not x + y + z or x − y − z). The ∓ always has the opposite sign to ±.
Indian rupee symbol in graphic form. The new sign is a combination of the Devanagari letter र ("ra") and the Latin capital letter R without its vertical bar. The parallel lines at the top (with white space between them) makes an allusion to the tricolour Indian flag and also depict an equality sign that symbolizes the nation's desire to reduce economic disparity.
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Signum function = . In mathematics, the sign function or signum function (from signum, Latin for "sign") is a function that has the value −1, +1 or 0 according to whether the sign of a given real number is positive or negative, or the given number is itself zero.
"Sign o' the Times" (stylized as "Sign "☮︎" the Times") is a song from American musician Prince's 1987 album of the same name, released as a single on February 18, 1987. The song was originally intended for two separate Prince studio albums meant to be released in 1986, both shelved: Dream Factory and Crystal Ball .
The at sign, @, is an accounting and invoice abbreviation meaning "at a rate of" (e.g. 7 widgets @ £2 per widget = £14), [1] now seen more widely in email addresses and social media platform handles.