The Teradata specific exponentiate operator (Expression raised to a value) is supported, generating (expression ** value) and returning a value of type float. When dragging an Exponentiate into a variable, the following tree element is created.
Variable Creation > Input > Variables: SQL Elements pane - Arithmetic > Exponentiate
Columns and/or other expressions can be moved over the (empty) branches of the tree. Note that the second argument must resolve to a numeric literal.
There are no special properties for the Exponentiate function.