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Forum: Miscellaneous Math 2020-09-23, 08:59
Replies: 43
Views: 1,399
Posted By LaurV
Prove him an asshole, by coming with a proof of...

Prove him an asshole, by coming with a proof of the fact that your test is more than a PRP test. Otherwise you are just a crank (https://en.wikipedia.org/wiki/Crank_(person)) or (worse) a troll...
Forum: Information & Answers 2020-09-23, 08:41
Replies: 6
Views: 225
Posted By LaurV
Yep, CERTs jump the queue. You may be able to...

Yep, CERTs jump the queue. You may be able to change this behavior (read the thread about the new P95) or completely opt out from CERTs, but as long as you opted in, you will get this type of work...
Forum: Software 2020-09-23, 08:05
Replies: 26
Views: 1,061
Posted By LaurV
Not long ago we did some "study" and posted about...

Not long ago we did some "study" and posted about using SP to implement DP. In fact, you can not represent one DP by two SP (like it's the case for integers**), due to how the mantissa and the...
Forum: Abstract Algebra & Algebraic Number Theory 2020-09-21, 17:39
Replies: 5
Views: 177
Posted By LaurV
About that age (a bit younger actually), one...

About that age (a bit younger actually), one colleague of mine and me, after we learned from the teacher that 22/7 is a "good" approximation of \(\pi\) (known to the old Greeks too, of course), we...
Forum: LaurV 2020-09-21, 17:06
Replies: 3
Views: 1,046
Posted By LaurV
w00t Before: 23366 After: 23365 ...

Before:
23366


After:
23365


Hihi :razz:
Forum: Factoring 2020-09-15, 17:10
Replies: 7
Views: 254
Posted By LaurV
The algorithm is not "random". You can use some...

The algorithm is not "random". You can use some math tricks, and you can get lucky when you select the starting parameters, but the calculus is deterministic.

For example, if you want to factor...
Forum: Factoring 2020-09-15, 16:47
Replies: 7
Views: 254
Posted By LaurV
You compute a result "modulo something". So,...

You compute a result "modulo something". So, there are only a limited number of possible outcomes. The result is the input of the new "iteration". After long enough time, values will start to repeat,...
Forum: Miscellaneous Math 2020-09-15, 10:39
Replies: 43
Views: 1,399
Posted By LaurV
The fact that god plays dice or not or she is...

The fact that god plays dice or not or she is scratching her ass (i mean donkey) is non sequitur. The test is just PRP in disguise.
Forum: Lounge 2020-09-15, 10:34
Replies: 43
Views: 1,802
Posted By LaurV
Shameless! :razz:

Shameless! :razz:
Forum: Lounge 2020-09-15, 10:11
Replies: 1,071
Views: 46,611
Posted By LaurV
:popcorn:

:popcorn:
Forum: Software 2020-09-12, 07:49
Replies: 5
Views: 283
Posted By LaurV
If you sieve for n to 1 million, you have one...

If you sieve for n to 1 million, you have one million candidates, but you sieve with primes much larger. Take a range of 1 million consecutive numbers. Small primes (below 1 million) are sieved out...
Forum: chalsall 2020-09-12, 07:00
Replies: 12
Views: 299
Posted By LaurV
w00t Brilliant! Why it didn't occur to me?...

Brilliant! Why it didn't occur to me? :missingteeth::ouch2::davieddy:

Long time ago, around 1998, I was working in China in some factory and the boss at the time used to do the daily meetings at...
Forum: Miscellaneous Math 2020-09-12, 06:07
Replies: 8
Views: 357
Posted By LaurV
His "framework" is known, he is "barking at the...

His "framework" is known, he is "barking at the same tree" for few years by now. :razz:

Here, n is any integer.

What he tries to do for a while by now, is to find a previously unknown, non...
Forum: Factoring 2020-09-11, 10:06
Replies: 22
Views: 789
Posted By LaurV
Fixed it for you. Not that would change much,...

Fixed it for you. Not that would change much, haha.

One-line pari "search by q" (as posted a lot of times in the forum) with a parfor and a random start would be faster that the posted script.
Forum: Information & Answers 2020-09-11, 09:57
Replies: 9
Views: 575
Posted By LaurV
How big the numbers? yafu or pfgw could be a...

How big the numbers?
yafu or pfgw could be a MUCH better (and faster) choice. P95 is not exactly designed for "factoring".
Forum: GpuOwl 2020-09-09, 16:17
Replies: 2,472
Views: 146,481
Posted By LaurV
No. This is a long standing bug in gpuOwl. Mihai...

No. This is a long standing bug in gpuOwl. Mihai was kinda busy with switching to the new methods (certs) or he doesn't care :razz:
This is bothering, but harmless. I mean, not totally harmless, in...
Forum: Msieve 2020-09-09, 08:21
Replies: 18
Views: 680
Posted By LaurV
Haha! :razz:

Haha! :razz:
Forum: Hardware 2020-09-09, 07:27
Replies: 29
Views: 1,529
Posted By LaurV
Congrats on the new toy! It looks really cute! ...

Congrats on the new toy! It looks really cute!
But something is wrong with it, we don't see the seven Radeon VII cards there... (7R7, ha, I should patent this!)
Forum: Number Theory Discussion Group 2020-09-09, 05:18
Replies: 4
Views: 388
Posted By LaurV
1. Yep, we call these numbers "square free", not...

1. Yep, we call these numbers "square free", not "square-less". I modified the thread title, for future generation's searches.

2. There are many "proofs" of the fact that all mersenne numbers...
Forum: Miscellaneous Math 2020-09-09, 03:53
Replies: 56
Views: 3,058
Posted By LaurV
Man, if you wrote such thing in pari, then you...

Man, if you wrote such thing in pari, then you are already "familiar" with C more than you imagine. You can give it a try using either libpari or gwnum, to avoid implementing some things from scratch...
Forum: Miscellaneous Math 2020-09-09, 03:25
Replies: 32
Views: 1,542
Posted By LaurV
:modhat: :flex: Hiding a sourceforge link to...

:modhat: :flex:

Hiding a sourceforge link to an executable file behind an amd forum link won't do you any good either. Together with the scratchy answer above, that resulted in me editing the...
Forum: Conjectures 'R Us 2020-09-09, 03:01
Replies: 293
Sticky: News
Views: 29,394
Posted By LaurV
Rest in Peace, man. Condolences to family and...

Rest in Peace, man.
Condolences to family and friends.

Mother life is a bitch sometimes.

Edit: any way we make a collect/donation/whatever, and we send something (at least a post card?) to...
Forum: Miscellaneous Math 2020-09-09, 02:52
Replies: 26
Views: 1,303
Posted By LaurV
:orly emu: Haha, for some reason I can't stop...

:orly emu:
Haha, for some reason I can't stop laughing. Paraphrasing a famous person, "I know I am stupid, but when I look around, I get wings".
Forum: Software 2020-09-09, 02:36
Replies: 337
Sticky: Prime95 v30.3
Views: 17,168
Posted By LaurV
stupid question: Can it be that the resources on...

stupid question: Can it be that the resources on those aws clusters vary in some cases by occupancy or by method of interrogation? (i.e. when you ask how space is free on disk or memory, you get...
Forum: Lounge 2020-09-04, 04:47
Replies: 1,491
RIP
Views: 97,627
Posted By LaurV
Peter Fairweather...

Peter Fairweather (https://blogs.flinders.edu.au/fit/2020/09/01/tribute-to-an-outstanding-ecologist/) - ecologist.

Sad to see good people going. We knew for a while, from our daughter whose...
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