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The plus–minus sign or plus-or-minus sign (±) and the complementary minus-or-plus sign (∓) are symbols with broadly similar multiple meanings. In mathematics, the ± sign generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction.
The plus sign (+) and the minus sign (−) are mathematical symbols used to denote positive and negative functions, respectively. In addition, + represents the operation of addition , which results in a sum , while − represents subtraction , resulting in a difference . [ 1 ]
± (plus–minus sign) 1. Denotes either a plus sign or a minus sign. 2. Denotes the range of values that a measured quantity may have; for example, 10 ± 2 denotes an unknown value that lies between 8 and 12. ∓ (minus-plus sign) Used paired with ±, denotes the opposite sign; that is, + if ± is –, and – if ± is +.
Caret (The freestanding circumflex symbol is known as a caret in computing and mathematics) Circumflex (diacritic), Caret (computing), Hat operator ̂: Circumflex (diacritic) Grave, Tilde: Combining Diacritical Marks, Diacritic: Colon: Semicolon, Comma: Cedilla, Decimal separator ⁒ Commercial minus sign: Minus sign, Division sign, Per cent ...
Plus–minus sign (±), a mathematical symbol which can mean either plus (+) or minus (−), or can indicate the uncertainty of a measurement or statistic; Plus–minus (sports), a sports statistic used to measure a player's impact on the game; Plus–minus method, a geophysical method to interpret seismic refraction profiles
The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics. Additionally, the subsequent columns contains an informal explanation, a short example, the Unicode location, the name for use in HTML documents, [1] and the LaTeX symbol.
Degree sign: 0112 U+00B1 ± 177 0302 0261 ± Plus–minus sign: 0113 U+00B2 ² 178 0302 0262 ² Superscript two: 0114 U+00B3 ³ 179 0302 0263 ³ Superscript three: 0115 U+00B4 ´ 180 0302 0264 ´ Acute accent: 0116 U+00B5 µ 181 0302 0265 µ Micro sign: 0117 U+00B6 ¶ 182 0302 0266 ¶ Pilcrow sign 0118 U+00B7 · 183 ...
1360 (approx.), abbreviation for Latin et resembling the plus sign ... 1489 (first appearance of minus sign, and also first appearance of plus sign in print)