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Old 2009-04-20, 16:29   #12
R.D. Silverman
 
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Quote:
Originally Posted by Joshua2 View Post
What should I call it, because I have to call it something. I guess "An Extension of FLT"? What would you advise me to spend some time writing a program on? I figure it wouldn't be too bad to verify Beal Conjecture on small exponents where a solution is most likely to exist (which may or not have coprime bases) with bases up to something reasonable like 1 million. They have only been checked exp to 7 and bases to 250k, so it wouldn't take too much cpu time. If that doesn't work I plan on going to another project myself.

Any ideas? I was writing a program to find prime numbers using a sieve, but that is not really any use. I wrote a program to try and find a counterexample to the fortunate conjecture, but that took a lot of cpu time.
We have to call it the "Beal Conjecture", because there is no alternative
name that stands out, but I don't like it. Beal isn't even a mathematician.

If you are looking to write code that is actually going to settle some
open conjecture, I doubt whether it is doable within the time horizon
of a senior thesis. All of the current "well-known" conjectures have
already been pounded into the sand. I would check R. Guy's
"Unsolved Problems in Number Theory" and try one that hits my fancy.
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Old 2009-04-20, 18:51   #13
CRGreathouse
 
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I think it's a fine topic for an undergraduate paper. Learning the math to optimize the program is enough work already!
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Old 2009-04-20, 21:56   #14
cheesehead
 
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Quote:
Originally Posted by R.D. Silverman View Post
We have to call it the "Beal Conjecture", because there is no alternative name that stands out, but I don't like it.
Mathworld claims, at http://mathworld.wolfram.com/BealsConjecture.html

Quote:
Originally Posted by Mathworld
This conjecture is more properly known as the Tijdeman-Zagier conjecture (Elkies 2007).

. . .

Elkies, N. "The ABCs of Number Theory." Harvard Math. Rev. 1, 64-76, 2007.

Last fiddled with by cheesehead on 2009-04-20 at 22:02 Reason: Pesky colon-incorporated-into-preceding-link forum bug
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Old 2009-04-20, 22:25   #15
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Quote:
Originally Posted by Joshua2 View Post
I bet it could be run on wine. I have c# code, which I believe is not compilable on linux. I plan to rewrite my program into java as practice to learn java. I think linux can run that, at least macs can.
?? Java ?? When you want a very efficient program for Math, you use either C or/and assembler, I think. Not Java... Strange idea...
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Old 2009-04-21, 15:16   #16
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I'll think about mono. I might make a 32 bit version in the future as well. Thanks to those who have volunteered if I get linux or 32 bit :).

Last fiddled with by Joshua2 on 2009-04-21 at 15:16
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Old 2009-04-22, 13:50   #17
henryzz
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linux can run .net(includes c#) programs if they have mono installed
just type:
mono xxxxx.exe
i dont know about speed though

Last fiddled with by henryzz on 2009-04-22 at 13:51
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Old 2009-04-23, 02:17   #18
Joshua2
 
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ok, I don't have linux, but if anyone has it they are free to try it and let me know. I guess there is nothing I have to do on my end for mono? I wonder how mono compares to wine.
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Old 2009-04-23, 02:27   #19
CRGreathouse
 
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Quote:
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I wonder how mono compares to wine.
Entirely different. WINE is essentially a Windows emulator (despite the name!), while Mono is just a port of the .NET framework to Linux.
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Old 2009-04-23, 03:05   #20
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I know that, I was wondering about the relatives speed. The mono should be a bit faster it seems.
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Old 2009-04-23, 03:20   #21
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I wasn't able to run the executable with mono in Xubuntu.
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Old 2009-04-23, 03:39   #22
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Any error? It doesn't run in win 32 with a memory error. Did you run it with the three extensions it needs? In win it is "bealconjecture.exe 4 1 1000"

Last fiddled with by Joshua2 on 2009-04-23 at 03:43
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