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excel – How to recycle long formula within the same if statement

Posted by: admin May 14, 2020 Leave a comment

Questions:

I have an if statement that looks like this:

=If(LONG 1000-CHARACTERS FORMULA > 0, LONG 1000-CHARACTERS FORMULA, "null")

In English, the cell will return the 1000-character formula output if that 1000-character formula is greater than 0.

The problem is copying and pasting the long 1000-characters formula.

A simple work around would be storing that 1000-character formula in a hidden cell (i.e., B2), then writing this:

=If(B2 > 0, B2, "null)

But, I don’t want to use the above method because I have many cells with different long formulas.

Instead, is there a way to recycle the 1000-characters formula within the If statement? A possible outcome might look like:

=If(LONG 1000-CHARACTERS FORMULA > 0, xyz, "null")
How to&Answers:

You need a function which has an inverse and is only valid for positive numbers. A good candidate is

y=1/sqrt(x)

or

y=x^0.5

whose inverse is

x=y^-2

So the formula becomes

Iferror(((long_formula^-.5)^-2,"null")

However from the comments linking back to the previous question it seems that the result (of countifs) can’t be a negative number so you could simplify it down to 1/(1/long_formula) as in @Gary’s Student’s (now deleted) answer.

Edit

I had forgotten that there is another way of doing this – using the Text function to format the number differently if it is negative or zero:

=TEXT(long_formula,"general;\n\u\l\l;\n\u\l\l")

The result is a string, so would need to be converted to a number if (say) you wanted to compare it with another number.