From: Alex LeDonne <aledonne.listmail@...>
Date: 2007-10-23T02:32:54+09:00
Subject: Re: Nth Root in Ruby

On 10/22/07, Peter Laurens <peterlaurenspublic@gmail.com> wrote:
> Hi,
>
> I have tried Googling, but am finding it difficult to track down an
> answer to my question:
>
> What's the easiest way to calculate the Nth root of a number in Ruby,
> I've looked at the Math module but this doesn't seem to include this
> functionality unless I'm missing something. Do I need to roll my own?
>
> Thanks,
>
> - N

Try raising to the power of the reciprocal:

irb(main):001:0> # calculate a third root
irb(main):002:0> 10.0 ** (1.0/3.0)
=> 2.15443469003188

-A