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The symbol # is known variously in English-speaking regions as the number sign, [1] hash, [2] or pound sign. [3] The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔.
Chris Messina suggested using hashtags on Twitter. The number sign or hash symbol, #, has long been used in information technology to highlight specific pieces of text. In 1970, the number sign was used to denote immediate address mode in the assembly language of the PDP-11 [12] when placed next to a symbol or a number, and around 1973, '#' was introduced in the C programming language to ...
hash HAS-160: 160 bits hash HAVAL: 128 to 256 bits hash JH: 224 to 512 bits hash LSH [19] 256 to 512 bits wide-pipe Merkle–Damgård construction: MD2: 128 bits hash MD4: 128 bits hash MD5: 128 bits Merkle–Damgård construction: MD6: up to 512 bits Merkle tree NLFSR (it is also a keyed hash function) RadioGatún: arbitrary ideal mangling ...
Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.
Hash mark (sports), a marking on hockey rinks and gridiron football fields; Hatch mark, a form of mathematical notation; Number sign (#), also known as the hash, hash mark, or (in American English) pound sign; Service stripe, a military and paramilitary decoration; Tally mark, a counting notation; Checkmate symbol in chess
On Wikipedia, a number sign, hash sign, pound sign or hashtag (#) may refer to one of the following uses: Number signs used in wiki markup. Number signs used to create ordered lists; Number signs used to link to a section of a page; Due to technical restrictions, number signs are not allowed in page titles.
What is needed is a hash function H(z,n) (where z is the key being hashed and n is the number of allowed hash values) such that H(z,n + 1) = H(z,n) with probability close to n/(n + 1). Linear hashing and spiral hashing are examples of dynamic hash functions that execute in constant time but relax the property of uniformity to achieve the ...
The 33 characters classified as ASCII Punctuation & Symbols are also sometimes referred to as ASCII ... Number sign, Hash, Octothorpe, Sharp: 0004 U+0024 $ 36 044 ...