This ordinary Excel formula: SUMPRODUCT((x = x )*(y = y)*(z = z),(A:A)) can
be replaced by array formula: {SUM(x = x)*( y = y)*(z = z)*(A:A))}.
Both formula will produce the same result. My question is that what is the
extra advantage on "array formula" over the ordinary formula.
Please advice.
Wilchong
--
Message posted via
http://www.officekb.com