NA
Syntax:
NA ( )
Description: Gets the error value #N/A. (The error value #N/A can be used instead of a call to this function; the result is the same.)
Arguments: None.
Return Type and Value: error – The error value #N/A.
[Example:
NA() results in #N/A
IF(ISNA(NA()),"T","F") results in T
end example]