Calling functions
You can execute a user function by using the Call statement. The function can reside in any program file in the current project. A return value is returned, with the function used as an argument. You can also omit the Call statement if you don't need the return value. When Call is omitted, then parentheses for the arguments must not be supplied.
Here are some examples:
Call MyFunc(1, 2)
MyFunc 1, 2
Print MyFunc(1, 2)