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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] Their use has been extended to many other meanings, more or less analogous.
Glossary of mathematical symbols. A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various ...
The plus sign + (itself based on an et-ligature) is often informally used in place of an ampersand, sometimes with an added loop and resembling ɬ. [citation needed] Other times it is a single stroke with a diagonal line connecting the bottom to the left side. This was a version of shorthand for ampersand, and the stroke economy of this version ...
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes.
Mathematical operators and symbols are in multiple Unicode blocks. Some of these blocks are dedicated to, or primarily contain, mathematical characters while others are a mix of mathematical and non-mathematical characters. This article covers all Unicode characters with a derived property of "Math". [2] [3]
The plus and minus symbols are used to show the sign of a number. In mathematics, the sign of a real number is its property of being either positive, negative, or 0. In some contexts, it makes sense to consider a signed zero (such as floating-point representations of real numbers within computers). Depending on local conventions, zero may be ...
integral sign. : colon (for division ) 1684 (deriving from use of colon to denote fractions, dating back to 1633) ·. middle dot (for multiplication ) 1698 (perhaps deriving from a much earlier use of middle dot to separate juxtaposed numbers) ⁄. division slash (a.k.a. solidus )
Plus–minus 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 statistics and experimental sciences, the sign commonly indicates the confidence interval or uncertainty ...