### 19.2.2. Defining Your Own Units

The commonly used units array is only a subset of the possible units you can use in CFX-Pre. Each unit is a combination of one or more base dimensions. To specify your own units for a quantity, click the Enter Expression icon for the associated variable and type the value and units into the data area using the syntax. For details, see Units Syntax.

There are many base units to choose from; most units in common use are valid as parts of unit strings. You can specify any quantity in any valid units as long as you adhere to the units definition syntax.

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