"if there is no number in either c2 or f2"

I think OR function instead of AND function

=IF(OR(C2="",F2=""),"",H1-C2+F2)


"Peter" wrote:

Hi
I have credits in c2 and debits in f2 and the running total in h2 but I do
not want h2 to display anything if there is no number in either c2 or f2. I
have an idea it should look something like this
=If (c1 and f1="","",(h1-c2+f2)) but this does not work and I am not sure
about how to tie the IF & AND functions together to achieve my objective.
Any help would be gratefully received.
Peter