A2: =IF(A1="","",A1)
A3: =IF(LEN(A2)=0,"empty","full")

Regards

Trevor


"Nicoscot" wrote in message
...
I do not understand why a cell that contains a formula which result is
empty
is not considered as an empty cell.
Example: The cell A1 is empty; in cell A2 I type =A1; in cell A3 I type
=if(isblank(A2);"empty";"full") and the result in A3 is... "full". I do
not
get it.
Other example:The cell A1 is empty; in cell A2 I type =A1; in cell A3 I
type
=if(A20;"number higher than 0";"other") and the result in A3 is...
"number
higher than 0"!!!!.... Even in the case that the value in A2 was 0 how
could
it be strictly superior to 0!!! That makes no sense at all.
Please tell me how to create a reference to an empty cell whose result is
indeed an empty cell. I am going crazy.