I can't find the square root function

FatPuppy

macrumors 68000
Original poster
Jul 14, 2012
1,707
140


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?
 

FatPuppy

macrumors 68000
Original poster
Jul 14, 2012
1,707
140
Try entering 9, and hit the key. If the answer is 3...it's probably the square root key!:p



;) :D

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
Sep 27, 2011
441
64
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
Apr 24, 2009
1,151
654
10.0.1.3
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
Jul 14, 2012
1,707
140
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!