Thread: SumProduct Help
View Single Post
  #6   Report Post  
Posted to microsoft.public.excel.worksheet.functions
David Biddulph[_2_] David Biddulph[_2_] is offline
external usenet poster
 
Posts: 8,651
Default SumProduct Help

As I pointed out in another post, I screwed up my decimal point in there,
and the 0.1 should have been 0.01 (so I'm not surprised that you didn't
understand the formula with the error in it). :-(

You have to remember the precedence of the operators. It's not *.01+1.01,
it's *(0.01+(1.01*SIGN(...))), so when SIGN() is +ve you multiply by +1.02,
and when sign is -ve you multiply by -1.00.
--
David Biddulph

"Sandy" wrote in message
...
Thanks David
In the non-array formula what is the *.1+1.01 bit ?


"David Biddulph" wrote:

You could try =SUMPRODUCT(ROUNDUP(Q4:AY4*(IF(Q4:AY4<0,-1,1.02)),0)) as an
array formula
Or =SUMPRODUCT(ROUNDUP(Q8:AY8*(0.1+1.01*SIGN(Q8:AY8)) ,0)), which doesn't
need to be an array formula.
--
David Biddulph

"Sandy" wrote in message
...
Hello
I need to modify my sumproduct formula:

SUMPRODUCT(ROUNDUP(Q4:AY4*1.02,0))

Such that if Q4:AY4 0 ROUNDUP(Q4:AY4*1.02,0) and if < 0 abs(Q4:AY4)

Thanks