Units of Measurement

Use physical units, converting units, checking unit consistency and compatibility

Use and manipulate physical units of measurement. These units act as symbolic expressions and can be used with Symbolic Math Toolbox™ functions. You can verify unit dimensions, convert between units, and create your own custom units.

Functions

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Define, Create, Convert Units

`checkUnits`	Check for compatible dimensions and consistent units
`findUnits`	Find units in input
`isUnit`	Determine if input is a symbolic unit
`mixedUnits`	Split unit into sum of units
`newUnit`	Define new unit
`removeUnit`	Remove unit
`rewrite`	Rewrite expression in terms of another function
`separateUnits`	Separate units from expression
`simplify`	Algebraic simplification
`str2symunit`	Convert character vector or string to unit
`symunit`	Units of measurement
`symunit2str`	Convert unit to character vector
`unitConversionFactor`	Conversion factor between units
`unitConvert`	Convert units to other units of measurement
`unitInfo`	Information on units of measurement

Unit Systems

`baseUnits`	Base units of unit system
`derivedUnits`	Derived units of unit system
`newUnitSystem`	Define unit system
`removeUnitSystem`	Remove unit system
`unitSystems`	List available unit systems

Topics

Units of Measurement Tutorial
Use, manipulate, and convert units of measurement.
Unit Conversions and Unit Systems
Convert units to other units or systems of units.
Units and Unit Systems List
List of available units of measurement.

Related Information

Thermodynamics (MathWorks Teaching Resources)

Featured Examples

Units in Physics Calculations

Work with units in physics calculations. Calculate the terminal velocity of a falling paratrooper in both SI and imperial units. Solve the motion of the paratrooper, taking into account the gravitational force and the drag force.

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