The expression editor is used to create new expressions and modify existing expressions in Ansys TurboGrid. Ansys TurboGrid can use expressions in place of any numeric value (as long as the correct units are returned by the expression). For example, you can use expressions to define object properties or new variables.
Note:
When a setting is defined by an expression, and the latter evaluates to a quantity that has no units, the software internally applies the default units for that setting.
In an expression, a term that has no units can be added to a term that has angular units, in which case the software internally applies radians to the term that has no units.
To create or edit an expression, select Tools > Expressions from the main menu. The Expression Editor dialog box is displayed.