Re(2): Cube root

["Mike Naughton" <mnaughton@xxxxxxxxxxxx>]

Maybe it will help to remember that:

x**(a) * x**(b) = x**(a+b)

(you should be able to convince yourself of this with a few simple
examples)

thus x**(1/n) * x**(1/n) * x**(1/n) . . . [n times] = x**(1/n + 1/n + 1/n
. . .) = x**(1) = x

and hence x**(1/n) is the nth root of x



RPG400-L@midrange.com writes:
>Ooooh, good point Adam.  I totally missed that.  It seems, however, that
>other people have come up with the very simple solution of:
>
>root = Number ** ( 1/3 )
>
>I have no idea why this works.  I musta been sleeping that day in math
>class.
>A lot of people knew it, though, which makes me feel kinda... umm...
>stupid.
>
>Regards,
>
>Jim Langston


Mike Naughton
Senior Programmer/Analyst
Judd Wire, Inc.
124 Turnpike Road
Turners Falls, MA  01376
413-863-4357 x444
mnaughton@juddwire.com

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