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U+2212 − MINUS SIGN; U+002D -HYPHEN-MINUS; U+FE63 ﹣ SMALL HYPHEN-MINUS; U+FE62 ﹢ SMALL PLUS SIGN; U+FF0B + FULLWIDTH PLUS SIGN; U+FF0D - FULLWIDTH HYPHEN-MINUS; Alternative minus signs "÷" being used as a minus sign (not as a division sign) in an excerpt from an official Norwegian trading statement form called «Næringsoppgave 1 ...
The symbol also has a HTML entity representations of ±, ±, and ±. The rarer minus–plus sign is not generally found in legacy encodings, but is available in Unicode as U+2213 ∓ MINUS-OR-PLUS SIGN so can be used in HTML using ∓ or ∓. In TeX 'plus-or-minus' and 'minus-or-plus' symbols are denoted \pm and \mp ...
± (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 +.
When a minus sign is used in between two numbers, it represents the binary operation of subtraction. When a minus sign is written before a single number, it represents the unary operation of yielding the additive inverse (sometimes called negation ) of the operand.
Generally, for numbers t1, ..., tn−1 ∈ (−1, 1) for which θn = Σn−1. k=1 arctan tk ∈ (π/4, 3π/4), let tn = tan (π/2 − θn) = cot θn. This last expression can be computed directly using the formula for the cotangent of a sum of angles whose tangents are t1, ..., tn−1 and its value will be in (−1, 1).
In some styles, minus signs are represented using an en dash instead of a minus sign or a hyphen. This is not done in Wikipedia. In math formulas a hyphen-minus codes for a minus sign, but in text − produces the minus sign (see below). En dash ("–", MOS:ENDASH) are slightly longer than hyphens. They are used: in date ranges, such as ...
In computing, signed number representations are required to encode negative numbers in binary number systems. In mathematics, negative numbers in any base are represented by prefixing them with a minus sign ("−"). However, in RAM or CPU registers, numbers are represented only as sequences of bits, without extra symbols.
Johann Rahn. ≤ ≥. unstrict inequality signs ( less-than or equals to sign and greater-than or equals to sign ) 1670 (with the horizontal bar over the inequality sign, rather than below it) John Wallis. 1734 (with double horizontal bar below the inequality sign) Pierre Bouguer. d. differential sign.
The triple bar or tribar, ≡, is a symbol with multiple, context-dependent meanings indicating equivalence of two different things. Its main uses are in mathematics and logic. It has the appearance of an equals sign = with a third line.
Order of operations. In mathematics and computer programming, the order of operations is a collection of rules that reflect conventions about which operations to perform first in order to evaluate a given mathematical expression . These rules are formalized with a ranking of the operations. The rank of an operation is called its precedence, and ...