Difference between revisions of "Unit"
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| − | + | The word '''unit''' means any of several things: | |
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| − | + | * [[Unit (housing)]], in Australia/New Zealand - a self-contained suite of rooms within a set of similar dwellings. | |
| + | * [[Units of measurement]], a fundamental quantity of measurement | ||
| + | * [[Units (Unix)]], a command-line computer program that does unit conversion | ||
| + | * [[Units conversion by factor-label]], a widely used approach for performing [[Conversion of units]] | ||
| + | * A unit can be a general word for a module or device. For more specific example, see next entry. | ||
| + | * [[Functional unit]], a component of a computer system such as the CPU | ||
| + | * A unit can refer to a self-contained section of a building (or maybe a structure such as a cabin) meant to be rented or otherwise occupied by a party, such as an apartment or business suite. See [[Apartment]]. | ||
| + | * In chemical engineering, a unit is a (usually) large vessel or section of a plant in which a [[unit operation]] goes on. See [[Chemical plant#Chemical processes]]. | ||
| + | * [[Unit of action]], a discrete piece of action (or beat) in a theatrical presentation | ||
| + | * [[Multiple unit]], a passenger train whose carriages have their own motors | ||
| + | * [[Unit of alcohol]], 10 millilitres of pure ethanol in the UK | ||
| + | * In biochemistry, unit is the measure of [[enzyme assay|enzyme activity]]. | ||
| + | * In a [[19-inch rack]] a ''rack unit'' is a standard height of 1.75 inches | ||
| + | * [[Military unit]]s, including: | ||
| + | ** [[Unit 101]], an Israeli special operations unit | ||
| + | ** [[Unit 731]], a covert medical experiment unit of the Imperial Japanese Army, which researched biological warfare through human experimentation during the Second Sino-Japanese War (1937-1945) and World War II | ||
| + | * A [[Strategic business unit]] | ||
| + | * A unit of blood, equal to one [[pint]]. | ||
| + | * [[Unit Corporation]], a United States oil and gas producer | ||
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| + | In '''mathematics''': | ||
| + | * [[Unit vector]], a vector with length 1 | ||
| + | * [[Unit circle]], the circle with radius 1 centered at the origin | ||
| + | * [[Unit interval]], the interval of all real numbers between 0 and 1 | ||
| + | * [[Imaginary unit]], ''i'', whose square is -1 | ||
| + | * [[Root of unity]], a complex number, a power of which is 1 | ||
| + | * [[Unit (ring theory)]], an element that is invertible with respect to ring multiplication | ||
| + | * [[Unit type]], a type that allows only one value | ||
| + | * In [[category theory]], there is a [[natural transformation]] called the unit from the identity functor to the composition of two adjoint functors | ||
Latest revision as of 23:47, 20 September 2009
The word unit means any of several things:
- Unit (housing), in Australia/New Zealand - a self-contained suite of rooms within a set of similar dwellings.
- Units of measurement, a fundamental quantity of measurement
- Units (Unix), a command-line computer program that does unit conversion
- Units conversion by factor-label, a widely used approach for performing Conversion of units
- A unit can be a general word for a module or device. For more specific example, see next entry.
- Functional unit, a component of a computer system such as the CPU
- A unit can refer to a self-contained section of a building (or maybe a structure such as a cabin) meant to be rented or otherwise occupied by a party, such as an apartment or business suite. See Apartment.
- In chemical engineering, a unit is a (usually) large vessel or section of a plant in which a unit operation goes on. See Chemical plant#Chemical processes.
- Unit of action, a discrete piece of action (or beat) in a theatrical presentation
- Multiple unit, a passenger train whose carriages have their own motors
- Unit of alcohol, 10 millilitres of pure ethanol in the UK
- In biochemistry, unit is the measure of enzyme activity.
- In a 19-inch rack a rack unit is a standard height of 1.75 inches
- Military units, including:
- A Strategic business unit
- A unit of blood, equal to one pint.
- Unit Corporation, a United States oil and gas producer
In mathematics:
- Unit vector, a vector with length 1
- Unit circle, the circle with radius 1 centered at the origin
- Unit interval, the interval of all real numbers between 0 and 1
- Imaginary unit, i, whose square is -1
- Root of unity, a complex number, a power of which is 1
- Unit (ring theory), an element that is invertible with respect to ring multiplication
- Unit type, a type that allows only one value
- In category theory, there is a natural transformation called the unit from the identity functor to the composition of two adjoint functors