Hi
and this is just what this formula does. Just try it. For an
explanation see:
http://www.xldynamic.com/source/xld.SUMPRODUCT.html

--
Regards
Frank Kabel
Frankfurt, Germany

"pfdubz" schrieb im Newsbeitrag
...
I am not trying to multiply column M and column S. I am trying to
add all
the numbers in column S that correspond with text in column M that
begins
with the letter "A"

"Don Guillett" wrote:

try
=sumproduct((left(m3:m100,1)="A")*s3:s100)
=sumproduct((left(m3:m100,1)="A")*s3:v100)


--
Don Guillett
SalesAid Software

"pfdubz" wrote in message
...
I have a datatable with a number of columns and I want to add all
the
numbers
in column "S" when the text in column "M begin with an "A". I
also want
to
use the same function for all the numbers in Cloumns "T", "U",
"V", etc.
I have tried =SUMIF($M$3:$M$100,LEFT($M3,1)="A",S3:S100) and all
I get is
"0". Any suggestions?