View Full Version : x square root y in excel
Stuart
January 10th 04, 01:49 AM
I am having problems on excel trying to get the x root y
function. I know that the sqaure root function is
written "sqrt(x)" but if I want to find the root of a
number by a number other than 2, what do I type into
excel?
Thanks.
Rick Hale
January 10th 04, 01:50 AM
Wrong group, but you can use the POWER function. POWER(10,1/3) will return
the cube root.
Rick
"Stuart" > wrote in message
...
> I am having problems on excel trying to get the x root y
> function. I know that the sqaure root function is
> written "sqrt(x)" but if I want to find the root of a
> number by a number other than 2, what do I type into
> excel?
>
> Thanks.
Rob Schneider
January 10th 04, 01:50 AM
Stuart wrote:
> I am having problems on excel trying to get the x root y
> function. I know that the sqaure root function is
> written "sqrt(x)" but if I want to find the root of a
> number by a number other than 2, what do I type into
> excel?
>
> Thanks.
This best asked of the number crunchers in the Excel newsgroups ... that
being said, this brings me back to basic math concepts learned a *few*
years back.
Excel's square root function is the special case of a number raised to
the power of 0.5
Excel's power function is the general case, e.g.
1.412=sqrt(2)
1.412=power(2,1/2) ... square root of 2
1.260=power(2,1/3) ... cubed root of 2
etc.
see the pattern?
A terrific reference for this sort of thing for your bookshelf would be
the CRC Standard Math Tables and Formulae
http://www.amazon.com/exec/obidos/tg/detail/-/0849324793/ref=pd_sim_books_3/102-2291095-3779307?v=glance&s=books
vBulletin® v3.6.4, Copyright ©2000-2012, Jelsoft Enterprises Ltd.