Design Tables and Equations

When you enter equation and global variables in a design table, the equations and global variables are automatically reflected in the Equations dialog box.

In a design table, equations must be preceded by a single apostrophe and an equal sign ('=). The single apostrophe ensures, that if the equation is exported to Excel, it is interpreted as an equation and not as a text string.


You can also disable or enable an equation across all configurations by specifying a unique identifier (Relation ID) in a design table. This functionality is available when the Display unique equation identifier option is selected in System Options > Display.

In Ordered View of the Equations dialog box, when you hover over an equation under the Name column, a tool tip displays a unique ID (Relation ID) for that equation.

You use this ID in the following parameter: $Enable@Relation_ID@Equations, where Relation ID is a unique number that identifies an equation. For example, the $Enable@1@Equations parameter applies to equation 1. Then in the design table, under that parameter, enter Yes to enable or No to disable the equation for all configurations.