Unit

Unit may refer to:

Mathematics

• Unit (ring theory), an element that is invertible with respect to ring multiplication
• 1 (number), the unit number
• Unit vector, a vector with length equal to 1
• Unit circle, the circle with radius equal to 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 type, a type that allows only one value
• Unit, in category theory, a natural transformation from the identity functor to the composition of two adjoint functors
• A statistical unit, in statistics, one member of the class of objects being studied

Science and technology

• Units (software), a software program for unit conversion
• Units of measurement, a standardized quantity of measurement of a physical quantity
• Enzyme unit
• Unit (Université Numérique Ingénierie et Technologie), the Online University of Science and Technology
• Unit of electricity, one kilowatt hour of mains electricity
• Unit operation, a basic step in a chemical plant process
• Functional unit, a component of a computer system such as the CPU
• Unit of blood, a measurement in blood transfusion equal to one pint or 450 ml
• Unit of alcohol, 10 millilitres of pure ethanol in the United Kingdom
• Rack unit, a measure to describe the height of rack-mounted computer equipment
• Geological unit or rock unit, a volume of identifiable rock or ice

Entertainment and the arts

• UNIT, a fictional military organization in the science fiction television series Doctor Who
• Unit (album), by the Australian band Regurgitator
• Unit (art collective), a British artists' collective
• G-Unit, a hip-hop music group
• The Units, a synthpunk band
• The Unit, an American television series
• Second unit, a team that shoots footage which is of lesser importance for the final motion picture
• Unit of action, a discrete piece of action (or beat) in a theatrical presentation
• UNIT Post Production, a British company
• The Tony Rice Unit, an American bluegrass group

Other uses

• Unit (housing), a self-contained suite of rooms within a set of similar dwellings
• Unit of account, a monetary unit of measurement
• An apartment
• Multiple unit, a passenger train where each carriage has it own motors
• Military unit
• Strategic business unit
• In real time strategy games, an individual (or squad, depending on the game) infantry or vehicle

See also

• UNITA
• Subunit (disambiguation)