The standard natural exponentiate function (e to the power) is supported, generating EXP (expression) and returning a value of type float. When dragging a Natural Exponentiate into a variable, the following tree element is created.
Variable Creation > Input > Variables: SQL Elements pane - Arithmetic > Natural Exponentiate

Columns and/or other expressions can be moved over the (empty) branch of the tree.
There are no special properties for the Natural Exponentiate function.
Consider using a Case statement in conjunction with this function if extreme values in the data may occur, resulting in an overflow or SQL argument error.