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

 Messages: [ Previous | Next ]
 wes Posts: 24 Registered: 12/13/04
Re: A very hard equation
Posted: Oct 26, 2004 7:40 PM

In article &lt;261020041356130641%anniel@nym.alias.net.invalid&gt;,
anniel@nym.alias.net.invalid says...
&gt; &lt;wesh@acm.org&gt; wrote:
&gt;
&gt; &gt; ramtin13682002@yahoo.com says...
&gt; &gt; &gt; (x+1)^1/3+4(1-x)^1/3=41-x^2
&gt; &gt; &gt;
&gt; &gt; &gt;
&gt; &gt;
&gt; &gt; Mathematica gets
&gt; &gt;
&gt; &gt; x = (1/6)*(3 - 5*Sqrt[57]), (1/6)*(3 + 5*Sqrt[57])
&gt; &gt;
&gt; &gt; wesh
&gt;
&gt; Mathematica assumes (x+1)^1/3 means ((x+1)^1)/3, and then
&gt; this is the solution. But humans assume (x+1)^1/3 means (x+1)^(1/3),
&gt; and then this is not the solution.
&gt;
Mea culpa!

Date Subject Author
10/26/04 Ramtin Komaili
10/26/04 A N Niel
10/26/04 Geert-Jan Uytdewilligen
10/26/04 Geert-Jan Uytdewilligen
10/27/04 M.J.T. Guy
10/26/04 David W. Cantrell
10/26/04 wes
10/26/04 A N Niel
10/26/04 wes
10/29/04 AK47