Can you please translate these formulas for me?
I have several formulas that I need to know how to read. Can you give me the gist of what they're saying?
1.
=IF(A18<>"",((N18-(L18/E18))/N18),"") - One this formula, I don't know what the <>"" after A18 means and I don't know why there's a "" after the last comma. Can you tell me what these two areas are telling the formula to do?
Keys to the Problem Can you please translate these formulas for me?
An IF function has three parts (called arguments) to it...
the first argument is a logical test that will return either TRUE or FALSE; the second argument is the what the formula should return when the logical test is TRUE; the third argument is what the
formula should return when the logical test is FALSE.
So, the first argument is this...
A18<>"".
This is testing the contents of cell A18 to see if it has a value in it or not.
The <> part of the expression is how you test for "not equal", the "" part is how you represent the empty string, that is, a text string
with no characters in it.
Think about how you would write the characters A9 as a text string in Excel so that Excel will not think it is an address...
you do it by surrounding the characters with quote marks to tell Excel it is a text string constant... this tells
Excel to not try and interpret it as a cell address.
You would do the same thing for the characters AB (surround it with quote marks) to stop Excel from trying to interpret AB as a named range.
So, if you take the characters completely out of the quote marks
so that you are left with "", this tells Excel it is a text string constant (that is what quote marks do) without any characters in it.
So, back to the original logical expression A18<>""....
if A18 has any characters in it at all, then it cannot be equal
to "" because "" has no characters in it.
The only time A18 can equal "" is when it contains no characters.
The expression A18="" would represent that condition, so A18<>"" is the opposite...
it is true when A19 contains at least one character or, in other
words, when A18 does not equal a text string with no characters in it.
If that is true (that A18 has at least one character in it), then the second argument is evaluated by Excel and the calculated value is returned by the formula, otherwise the third argument
is returned.
That third argument "" is the empty string which means the formuls will display no characters...
that is, the cell will look blank.
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