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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+2640 ♀ FEMALE SIGN: ♀: U+2642 ♂ MALE SIGN: ♂: U+26A5 ⚥ MALE AND FEMALE SIGN ⚥ Intersex, androgynous; hermaphrodite (in botany) U+25B3 WHITE UP-POINTING TRIANGLE Trine U+25BD WHITE DOWN-POINTING TRIANGLE Hamilton operator U+25A1 WHITE SQUARE U+25CB WHITE CIRCLE U+26A6 ⚦ MALE WITH STROKE 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 +.
female sign u+2642: ♂: male sign u+2660: ♠: black spade suit u+2661 ♡ white heart suit u+2662 ♢ white diamond suit u+2663: ♣: black club suit u+266d ♭ music flat sign u+266e ♮ music natural sign u+266f ♯ music sharp sign
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 ...
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 general mathematics, lowercase σ is commonly used to represent unknown angles, as well as serving as a shorthand for "countably", whereas Σ is regularly used as the operator for summation, e.g.: ∑ k = 0 5 k = 0 + 1 + 2 + 3 + 4 + 5 = 15 {\displaystyle \sum _{k=0}^{5}k=0+1+2+3+4+5=15}
The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date. The table can also be ordered alphabetically by clicking on the relevant header title. Symbol. Name. Date of earliest use. First author to use. —.
Mathematical Operators is a Unicode block containing characters for mathematical, logical, and set notation. Notably absent are the plus sign (+), greater than sign (>) and less than sign (<), due to them already appearing in the Basic Latin Unicode block, and the plus-or-minus sign (±), multiplication sign (×) and obelus (÷), due to them ...
Symbols are not only used for naming mathematical objects. They can be used for operations ( + , − , / , ⊕ , … ) , {\displaystyle (+,-,/,\oplus ,\ldots ),} for relations ( = , < , ≤ , ∼ , ≡ , …