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History. Names. Usage. Mathematics. Computing. Other uses. Unicode. On keyboards. See also. Explanatory notes. References. Number sign. The symbol # is known variously in English-speaking regions as the number sign, [1] hash, [2] or pound sign. [3] .
- Sign (mathematics) - Wikipedia
The plus and minus symbols are used to show the sign of a...
- Wikipedia:Number sign - Wikipedia
On Wikipedia, a number sign, hash sign, pound sign or...
- Sign (mathematics) - Wikipedia
number sign, versatile symbol (#) most commonly used to preface numbers (e.g., apartment #1) but which encompasses a variety of other uses, especially to tag (or hashtag) posts and messages on social media platforms. Names. The origin of the number sign is usually attributed to the Latin term libra pondo, meaning “a pound weight.”
- Stephen Eldridge
A number is a mathematical object used to count, measure, and label. The most basic examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words. More universally, individual numbers can be represented by symbols, called numerals; for example, "5" is a numeral that represents the number five.
In arithmetic, the sign of a number is often denoted by placing a plus or minus sign before the number. For example, +3 would denote a positive 3, and −3 would denote a negative 3. When no plus or minus sign is given, the main way of seeing it is that a number is positive. [2]
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The numero sign or numero symbol, № (also represented as Nº, No̱, No. or no.), is a typographic abbreviation of the word number(s) indicating ordinal numeration, especially in names and titles. For example, using the numero sign, the written long-form of the address "Number 29 Acacia Road" is shortened to "№ 29 Acacia Rd" , yet both forms ...
