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Topic: A very hard equation
Replies: 9   Last Post: Oct 29, 2004 10:38 AM

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wes

Posts: 24
Registered: 12/13/04
Re: A very hard equation
Posted: Oct 26, 2004 7:40 PM
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In article <261020041356130641%anniel@nym.alias.net.invalid>,
anniel@nym.alias.net.invalid says...
> In article <MPG.1be839c888c1561e989691@news.west.earthlink.net>, wes
> <wesh@acm.org> wrote:
>
> > In article <c0e2bfb2.0410260454.370292a9@posting.google.com>,
> > ramtin13682002@yahoo.com says...
> > > (x+1)^1/3+4(1-x)^1/3=41-x^2
> > >
> > >
> >
> > Mathematica gets
> >
> > x = (1/6)*(3 - 5*Sqrt[57]), (1/6)*(3 + 5*Sqrt[57])
> >
> > wesh
>
> Mathematica assumes (x+1)^1/3 means ((x+1)^1)/3, and then
> this is the solution. But humans assume (x+1)^1/3 means (x+1)^(1/3),
> and then this is not the solution.
>
Mea culpa!




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