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# I can't find the square root function

#### FatPuppy

##### macrumors 68000
Original poster

The highlighted function seems to be the square root but I remember that in iOS 6 it was without the "x" and the "2". Is the highlighted one the square root?

#### Shrink

##### macrumors G3
Image

The highlighted function seems to be the square root but I remember that in iOS 6 it was without the "x" and the "2". Is the highlighted one the square root?

Try entering 9, and hit the key. If the answer is 3...it's probably the square root key!

#### FatPuppy

##### macrumors 68000
Original poster
Try entering 9, and hit the key. If the answer is 3...it's probably the square root key!

I know, I tried and the answer is 3 but that 2 really confuses me. I use the square root all the time when I take a test at chemistry and I just wanted to make sure.

#### pk7

##### macrumors 6502
Image

The highlighted function seems to be the square root but I remember that in iOS 6 it was without the "x" and the "2". Is the highlighted one the square root?

Yes. This is mathematically still correct. Most people just don't write the 2 because √ symbol is universally understood to mean the square root (since x^2 is x "squared"). The button next to it is the cube root (x^3 is x "cubed"), and so on.

#### stiligFox

##### macrumors 65816
Image

The highlighted function seems to be the square root but I remember that in iOS 6 it was without the "x" and the "2". Is the highlighted one the square root?

Yes that's it! 2 is square root, the one next to it with 3 is cube root, and the one next to that with the x lets you specify what root -- 4, 5, the 99th root, etc.

#### FatPuppy

##### macrumors 68000
Original poster
Yes. This is mathematically still correct. Most people just don't write the 2 because √ symbol is universally understood to mean the square root (since x^2 is x "squared"). The button next to it is the cube root (x^3 is x cubed), and so on.

In iOS 6 and other calculator apps it's just the "√"

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Ok, now I understood, thanks all of you!

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