Mersenne Digest Wednesday, November 1 2000 Volume 01 : Number 789
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Date: Mon, 30 Oct 2000 12:36:12 +
From: Gordon Spence [EMAIL PROTECTED]
Subject: Mersenne: Re: Output from nofactor.cmp
On Mon, 30 Oct 2000 Henk Stokhorst wrote
Subject: Mersenne: bug in Wordpad?
L.S.,
Whenever I have a large file (about 3.000 lines) with exponents to test
(extracted from the nofactor.cmp file) and replace all the 'Test=' with
'Factor=' using wordpad (part of windows accesoires) one line gets to
read 'Factorst='.
When I extract items from this file using decomp.exe from George, then ALL
of the
lines already say Factor=
How are you extracting them?
regards
G
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Date: Mon, 30 Oct 2000 07:43:09 -0800
From: "John R Pierce" [EMAIL PROTECTED]
Subject: Re: Mersenne: bug in Wordpad?
It is not really the OS (although UNIX does have a lot of nice tools for
this type of thing) it is wordpad that is not really the most capable text
editor.
If you are using Windows I would suggest you try TextPad which is
available
for 30 day evaluation from www.textpad.com.
another very good ascii editor is 'Ultraedit32', also available for free
evaluation.
http://www.ultraedit.com
- -jrp
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Date: Mon, 30 Oct 2000 18:22:29 +0100
From: "Steinar H. Gunderson" [EMAIL PROTECTED]
Subject: Mersenne: Re: bug in Wordpad?
On Mon, Oct 30, 2000 at 07:43:09AM -0800, John R Pierce wrote:
another very good ascii editor is 'Ultraedit32', also available for free
evaluation.
http://www.ultraedit.com
While EditPad (http://www.editpad.com/, I think, not quite sure) is
postcardware (ie. send a postcard to the author :-) ).
Optionally, if you're into Unix and vi, vim (www.vim.org) is of course
available in DOS and Windows versions :-)
/* Steinar */
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Homepage: http://members.xoom.com/sneeze/
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Date: Mon, 30 Oct 2000 19:18:24 +0100
From: Henk Stokhorst [EMAIL PROTECTED]
Subject: Re: Mersenne: Re: Output from nofactor.cmp
Gordon Spence wrote:
When I extract items from this file using decomp.exe from George, then ALL
of the
lines already say Factor=
How are you extracting them?
with the wrong parameter, -t instead of -w ;-)
YotN,
Henk Stokhorst
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Date: Tue, 31 Oct 2000 10:42:11 +0100
From: "Hoogendoorn, Sander" [EMAIL PROTECTED]
Subject: RE: Mersenne: bug in Wordpad?
Whenever I have a large file (about 3.000 lines) with
exponents to test
(extracted from the nofactor.cmp file) and replace all the
'Test=' with
'Factor=' using wordpad (part of windows accesoires) one line gets to
read 'Factorst='.
You can extract with the -w option to get Factor= infront of each line
see the readme file
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Date: Tue, 31 Oct 2000 11:16:00 +
From: Alexander Kruppa [EMAIL PROTECTED]
Subject: Mersenne: ECM better than O(sqrt(f)) ?
I've read on the list some time ago that ECM takes, like Pollard-Rho or
P-1, O(sqrt(f)) operations mod N to find a factor f. But looking at the
factors found so far I find that hard to believe; according to that
formula, finding a 50-digit factor should be 10^15 times harder than
finding a 20-digit factor. Even if a 20-digit could be found in 1 sec.
average, the 50-digit would take some 30 million years - I dont believe
this much time has been spent on ECM worldwide already.
Is ECM better than O(sqrt(f)) ? Are there any more accurate lower
bounds, or even a \Theta(g(f)) ?
Ciao,
Alex.
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Date: Tue, 31 Oct 2000 03:51:53 -0800
From: Paul Leyland [EMAIL PROTECTED]
Subject: RE: Mersenne: ECM better than
