∓

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∓	U+2213, ∓ MINUS-OR-PLUS SIGN

Mathematical Operators

Translingual

Description

The plus sign (+) placed below the minus sign (−), as an inverse of ±.

Symbol

∓

(mathematics) The minus-plus sign: used after ± to indicate that when the first operation is 'plus', this one is 'minus', and vice versa.
$\cos(x\pm y)=\cos x\cos y\mp \sin x\sin y\iff {\big (}\cos(x+y)=\cos x\cos y-\sin x\sin y\wedge \cos(x-y)=\cos x\cos y+\sin x\sin y{\big )}$
(chess) Advantage for black.
(astrology) A tredecile (3⁄10) aspect of 108°.
Synonym: D³

Antonyms

±

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