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Topic: x + y + z >= xyz implies x^2 + y^2 + z^2 >= Axyz
Replies: 20   Last Post: Nov 1, 2013 4:48 AM

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 Peter Percival Posts: 2,364 Registered: 10/25/10
Re: x + y + z >= xyz implies x^2 + y^2 + z^2 >= Axyz
Posted: Oct 27, 2013 10:50 AM

christian.bau wrote:
> On Saturday, October 26, 2013 1:41:54 AM UTC+1, Peter Percival wrote:
>

>> A = sqrt 3.
>
> Proof?

Are you trying to embarrass me? :-).

I asked a computer program to find satisfying x, y, z for various values
of A. The program was only allowed to run for a short time. For A a
little greater that sqrt 3 it ran out of time, for A a little less than
sqrt 3 it found x, y, z.

It gets worse: neither the computer nor the program are mine, they
belong to Stephen Wolfram.

--
The world will little note, nor long remember what we say here
Lincoln at Gettysburg

Date Subject Author
10/25/13 quasi
10/25/13 David C. Ullrich
10/25/13 quasi
10/26/13 Karl-Olav Nyberg
10/26/13 quasi
10/26/13 Peter Percival
10/25/13 David C. Ullrich
10/25/13 Don Coppersmith
10/25/13 Don Coppersmith
10/25/13 gnasher729
10/25/13 Peter Percival
10/27/13 gnasher729
10/27/13 dan.ms.chaos@gmail.com
10/27/13 Peter Percival
10/27/13 fom
10/30/13 quasi
10/30/13 Peter Percival
10/30/13 quasi
10/31/13 quasi
10/31/13 quasi
11/1/13 Phil Carmody