Hash

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Look up hash in Wiktionary, the free dictionary.

Hash may refer to:

• Number sign, #, also called "hash symbol" or "pound sign" in the USA and Canada
• Hashish, a psychoactive drug derived from the Cannabis plant
• Hash (food), a coarse chunky mixture of beef and other things, e.g. corned beef hash or hash browns
• Hash House Harriers, a loosely-organized group of social organizations focused on running and camaraderie; also referred to as "hashing"
• A URL's fragment identifier

[edit] Hash function

Hash function made from any kind of data. Some types are:

• Cryptographic hash function, a hash function suitable for use in information security
• Hash table, a data structure associating keys with values using a hash function
• Associative array, an abstract data type often implemented as a hash table
• Geometric hashing, a method for efficiently finding geometric objects of the same or similar shape

[edit] Hash mark

Hash mark may refer to:

• Hatch mark, in mathematics, sometimes called a hash mark or tick mark, a short line perpendicular to an axis in analytic geometry
• Hash marks, the markings on hockey rinks and gridiron football fields
• Service stripe, commonly called a hash mark, a decoration of the United States military

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