understanding logic in formula INDEX&MATCH&AGGREGATE - "/" in Array section

**zarize92** · 12-05-2018, 07:48 AM

Hi guys,

I would like you to ask if you would be so kind and explain me why it is working like it is. I understand HOW it is working, but i don't understand WHY.

I dont understand the part where it is:

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Example
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=INDEX(MATCH(AGGREGATE(15,6,Range1/(Range2&Range3=A1&A2),1),Range1,0))

I know that it will return only results from range that are equal to A1&A2 but why i am using "/" this in that formula and brackets? It's probably easy math logic but i am still learning excel and i am hungry for knowledge.

**Bo_Ry** · 12-05-2018, 07:56 AM

AGGREGATE(15,6, Range1/Criteria , k)

If criteria are True, this will give row# Range1/True = Range1/1 = Range1

If False will result #Div/0 Range1/False = Range1/0 = #DIV/0

6 for ignore error such as #DIV/0

15 for small for small this will give small Range1 rank k that match criteria

**zarize92** · 12-05-2018, 07:59 AM

I mean i understand formula, but i don't understand part where it is range divided by conditions... how it works in math system? like why there is "/" before 2 conditionals? how should i understand it or consider it?

because in this case i understand it like "AND" so why i am using "/"(slash) like "&"(AND)

it's like return range if condition#1 & condition#2 are met... why / instead of IF? i dont know if i can explain it clearly

understanding logic in formula INDEX&MATCH&AGGREGATE - "/" in Array section

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[SOLVED] Need help understanding "Index" and "Match"

[SOLVED] INDEX MATCH formula that matches "*W3" or "*,3" and displays multiple matches in array

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[SOLVED] INDEX MATCH formula that matches "W3" or ",3" and displays multiple matches in array