Unit
Encyclopedia : U : UN : UNI : Unit
The word unit means any of several things:
- Unit of measurement, a fundamental quantity of measurement
- Units (computer program), a popular program that does unit conversion
- Units of energy, the units for energy measurements
- Units conversion by the Factor-label method
- Functional unit, a component of a computer system such as the CPU
- 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
- United Nations Intelligence Taskforce, a fictional entity in the Doctor Who television series
- Unit, an indie pop album by the Australian band Regurgitator
- Unit of alcohol, 10 millilitres of pure ethanol in the UK
- In biochemistry, unit is the measure of enzyme activity.
- In currency, a unit of money (a monetary unit)
- In a 19-inch rack a rack unit is a standard height of 1.75 inches
- 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, q.v.
- Military units, including:
- * Unit 101, an Israeli special operations unit
- * Unit 731, a secret unit of the Japanese army
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