--isnumber???

cmefly

Well-known Member
Joined
May 13, 2003
Messages
683
hi,

just wondering what the "--" infront of isnumber means?
I was assisted yesterday with some formulas and one contained the double hyphen....any ideas?
 

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The -- was brought here from ?Harlan Grove? via Aladin (hope I'm right) and coerces numeric results from formulas which would not normally yield them. At least, I think that's what I remember... Hey, don't trust me, haven't had a full cuppa joe, yet.
 
Upvote 0
Jon is right.

Double -- is a coercer like +0, *1, that is, they force Excel to convert numbers stored as text and logical values into numbers. So...

=--TRUE --> 1

=TRUE+0 --> 1

=TRUE*1 --> 1

By the way, -- and +0 are equally fast and both faster than *1.

If you wish, you can change...

--(ISNUMBER(...))

to

ISNUMBER(...)+0
 
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