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Plus and minus signs. 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]
U+2213 ∓ MINUS-OR-PLUS SIGN (∓, ∓, ∓) The plus–minus sign , ± , is a symbol with multiple meanings: In mathematics , it generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction .
In common numeral notation (used in arithmetic and elsewhere), the sign of a number is often made explicit by placing a plus or a minus sign before the number. For example, +3 denotes "positive three", and −3 denotes "negative three" (algebraically: the additive inverse of 3 ).
± (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 +.
plus sign: Ligature (writing) Angle brackets: Bracket, Parenthesis, Greater-than sign, Less-than sign, Guillemet: Bracket ' ’ Apostrophe: Quotation mark, Guillemet, Prime, Grave: Quotation marks in English, Possessive * Asterisk: Asterism, Dagger: Footnote ⁂ Asterism: Dinkus, Therefore sign @ At sign \ Backslash: Slash, Solidus ...
The plus sign. Addition is written using the plus sign "+" between the terms; that is, in infix notation. The result is expressed with an equals sign. For example, + = ("one plus two equals three") + + = (see "associativity" below) + + + = (see "multiplication" below)
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Greater-than sign with equals sign. The greater-than sign plus the equals sign, >=, is sometimes used for an approximation of the greater than or equal to sign, ≥ which was not included in the ASCII repertoire. The sign is, however, provided in Unicode, as U+2265 ≥ GREATER-THAN OR EQUAL TO (≥, ≥, ≥).
This article contains Unicode mathematical symbols. Without proper rendering support, you may see question marks, boxes, or other symbols instead of mathematical symbols. The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date.
The plus sign (+) is derived from Latin t via a simplification of a ligature for et "and" (introduced by Johannes Widmann in the late 15th century). The letter Aleph is cross-shaped in Aramaic and paleo-Hebrew. Egyptian hieroglyphs with cross-shapes include Gardiner Z9 – Z11 ("crossed sticks", "crossed planks").