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Sign (mathematics) 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. Depending on local conventions, zero may be considered as having its own unique sign, having no sign, or having both positive and negative sign.
The plus–minus sign or plus-or-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 ...
e. Debits and credits in double-entry bookkeeping are entries made in account ledgers to record changes in value resulting from business transactions. A debit entry in an account represents a transfer of value to that account, and a credit entry represents a transfer from the account. [ 1][ 2] Each transaction transfers value from credited ...
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 ...
Not allowed in calculations. Unlike the ASCII hyphen-minus character "-", the non-breaking hyphen character is typically rejected if used as a negative sign or minus sign in calculations: Using non-breaking hyphen: { {#expr: 34 ‑ 56}} → Expression error: Unrecognized punctuation character "‑". Similarly, PC pop-up calculators might ...
propositional logic, Boolean algebra, first-order logic. ⊥ {\displaystyle \bot } denotes a proposition that is always false. The symbol ⊥ may also refer to perpendicular lines. The proposition. ⊥ ∧ P {\displaystyle \bot \wedge P} is always false since at least one of the two is unconditionally false. ∀.
There are at least eight different horizontal dash-like characters of varying lengths defined in Unicode. Wikipedia uses four: the hyphen (sometimes called the hyphen-minus), the minus sign, the en dash, and the em dash. Hyphen (" - ", MOS:HYPHEN) (actually the hyphen-minus character in ASCII or Unicode character sets) are used in many ways on ...
Minus signs may also be coded by −. Another kind of hyphen is the non‑breaking hyphen, available in the Wiki code as {}. This character has the sole purpose to be a non-breaking word joiner. Unlike the hyphen-minus, the dashes and minus sign do not have any special role in the MediaWiki markup language.