Use the Eigenvalue Transform node () to define a transform between the internal eigenvalue computed by the eigenvalue solver and a more user-friendly quantity. To add an Eigenvalue Transform node, right-click Study/Solver Defaults () and select it from the context menu.

The Settings window has the following sections:

In the Study types list, choose among study types that use the eigenvalue solver. Enter a unique name and description for the transform in the Name and Description text fields.

Enter the name of the variable name in the Eigenvalue name text field. This name is used in the transform definitions. In the Transform to lambda text field, enter the expression that computes the internal eigenvalue, lambda, when the transform’s eigenvalue is known. Enter the inverse transform in the Transform from lambda text field.