Arithmetic operations on date

You can do the operations to calculate the data?
example:

[<J10>Totale Coperto X {TICKET TAG:coperto}:|[=F(TN('{DATE}') / TN('{TICKET TAG:coperto}'))]]

I tried but it does not work!

if I try to do, 02/16/2014 + 3 comes out 3

Hello Spanky. That calculation is not possible but if you can tell us your need we can implement a solution. For example what result 02/16/2014 + 3 should return or what is the expected result for
[<J10>Totale Coperto X {TICKET TAG:coperto}:|[=F(TN('{DATE}') / TN('{TICKET TAG:coperto}'))]]

expression.

on cases of reservation can happen to remember how many days between.
adding a ticket tag “between days” fits ilo number,
so we will have ticket tag + 8 22/02/2014 is equal to 30/02/2014
to print a ticket to be given to the customer or store