I've never explicitly heard of that before.

Maybe he means a formula that contains some type of error checking as being
"smart".

=A1/B1

As opposed to:

=IF(B1,A1/B1,"B1 Lacks Value")

--
Regards,

RD

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"dede" wrote in message
...
our professor is asking us the difference between a dumb formula and a
smart
formula and give an example. Any ideas?