The MDX functions that are listed
here indicate their return type.
returns the current
tuple from a set during an iteration. <Set>.Current
returns a member from
a specified tuple. Alternatively, it returns a tuple from a set. <Set>.Item(<Index>)
Note: If a member
is returned, then it is a member function, not a tuple function.
constructs a tuple
from a specified string expression in Multidimensional Expressions
(MDX) format. StrToTuple(<String expression>)