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Forum: Miscellaneous Math 2021-12-07, 20:55
Replies: 9
Views: 144
Posted By Batalov
"Lasciate ogne speranza, voi ch'intrate"...

"Lasciate ogne speranza, voi ch'intrate" (https://en.wiktionary.org/wiki/abandon_hope_all_ye_who_enter_here)
Forum: Miscellaneous Math 2021-12-07, 20:48
Replies: 45
Views: 2,457
Posted By Batalov
And there! We have circled back to nearly exactly...

And there! We have circled back to nearly exactly the same as the thread header.
So, my aside was on-topic (pats himself on the back).
Forum: Miscellaneous Math 2021-12-07, 20:43
Replies: 45
Views: 2,457
Posted By Batalov
This reminds me of a Russian joke (used to be...

This reminds me of a Russian joke (used to be popular):

Wife sends her husband who is a programmer to buy groceries. She tells him: "Buy two loaves of bread, and if they have eggs, buy a dozen."...
Forum: Miscellaneous Math 2021-12-07, 07:06
Replies: 45
Views: 2,457
Posted By Batalov
No, you have to compile it. I never use WinBlows....

No, you have to compile it. I never use WinBlows. I used Irix and then linux.

You do realize that I am talking about 17 years of Pari state staying with this "feature". From version 1 to 2.5 -...
Forum: Homework Help 2021-12-07, 04:07
Replies: 12
Views: 233
Posted By Batalov
Exactly. But the bigger question is "which...

Exactly.
But the bigger question is "which avatar?"
which of them? there is a dozen
Forum: Miscellaneous Math 2021-12-07, 02:54
Replies: 45
Views: 2,457
Posted By Batalov
Smile I don't remember exact time that I came across...

I don't remember exact time that I came across this but this is how it worked for ages. I am glad to hear that they fixed, but once burnt I don't want to test this with every release.

The logic...
Forum: Miscellaneous Math 2021-12-07, 01:39
Replies: 45
Views: 2,457
Posted By Batalov
Exclamation My pet peeve for Pari/GP is that all operators in...

My pet peeve for Pari/GP is that all operators in logical operations are estimated (very different from C or even perl - in them if you write if(a && b) {} -- and a is false, b is not computed. In...
Forum: Homework Help 2021-12-07, 01:23
Replies: 12
Views: 233
Posted By Batalov
That's like when a college student is required to...

That's like when a college student is required to run a mile, and instead asks you to give them a lift to 10 feet from the finish line. "I will still have to run 10 feet, right?"
Forum: And now for something completely different 2021-12-06, 21:07
Replies: 94
Views: 27,876
Posted By Batalov
I guess Neil was typing fast. Of course it is a...

I guess Neil was typing fast. Of course it is a PRP (it is 177719 decimal digits in length; btw, apparently I just now added it to FactorDB (http://factordb.com/index.php?id=1100000001550303311) for...
Forum: Homework Help 2021-12-06, 19:29
Replies: 12
Views: 233
Posted By Batalov
Wink One shall be ashamed of credit that they didn't...

One shall be ashamed of credit that they didn't deserve.
Forum: Homework Help 2021-12-06, 18:08
Replies: 12
Views: 233
Posted By Batalov
Thumbs down This looks like a homework (and wrong forum), and...

This looks like a homework (and wrong forum), and now the homework is ruined.
S/he will simply turn it in and get credit that s/he doesn't deserve.
Forum: And now for something completely different 2021-12-05, 20:07
Replies: 94
Views: 27,876
Posted By Batalov
Lightbulb Extending A176024 - in progress...

Challenge accepted!

I wrote a different sieve for Smr(n), sieved and (with Ryan) we will test the survivors up to n<=500000 for starters.

A few interesting facts:
1. Both Sm(n) and Smr(n) are...
Forum: Miscellaneous Math 2021-12-02, 21:24
Replies: 4
Views: 269
Posted By Batalov
Cool Well, this was actually, two separate threads in...

Well, this was actually, two separate threads in two different subforums (so it was "nearly spam", either way.
Arguably, it is even worse to create multiple threads with repeated content.).

The...
Forum: Proth Prime Search 2021-12-02, 18:08
Replies: 13
Views: 19,558
Posted By Batalov
Thumbs up It is one of the Extended Sierpinski Project...

It is one of the Extended Sierpinski Project (http://www.primegrid.com/stats_esp_llr.php).

(That is, proving the next Sierpinski constant, while proving the first one...
Forum: Lounge 2021-11-30, 07:50
Replies: 4,402
Views: 378,306
Posted By Batalov
Cool "10 stupid questions to..." "...a mathematician"

EYsr0DZWMCg

There was a good Russian modernist poet (https://en.wikipedia.org/wiki/Vladimir_Mayakovsky) who adapted to the 1917 revolution and became a sort of an agitator and propagandist - and...
Forum: And now for something completely different 2021-11-30, 03:55
Replies: 17
Views: 7,788
Posted By Batalov
Mark R. actually wrote a sieve for that. I used...

Mark R. actually wrote a sieve for that.
I used my own because it was way before that. (The sharp eyes will notice that this thread is from '16; but actually there was one even before that; then...
Forum: Number Theory Discussion Group 2021-11-29, 23:19
Replies: 15
Views: 813
Posted By Batalov
Thank you for answering the rhetorical question....

Thank you for answering the rhetorical question. :rolleyes:

The '-' sign happens exactly at q=3.
(Which makes a-PRP still work, even for q=3, because you square both sides for the last time in...
Forum: Number Theory Discussion Group 2021-11-29, 22:08
Replies: 15
Views: 813
Posted By Batalov
Also, suggestion for simplification of your...

Also, suggestion for simplification of your statement.

Your a=1+√2 (mod p) -- much simpler to look at.
Are you saying that [$]a^{{p+1}\over 2} = a[/$] (mod p) ?
That's the same* as ap = a (mod...
Forum: Number Theory Discussion Group 2021-11-29, 21:46
Replies: 15
Views: 813
Posted By Batalov
What made you think that this is a 'new...

What made you think that this is a 'new conjecture'?

Your original thread title was false and misleading: 'Potential new primality test for Mersenne numbers'.
One moderator implemented your...
Forum: Number Theory Discussion Group 2021-11-29, 21:38
Replies: 15
Views: 813
Posted By Batalov
Unreasonable. Because it is 100-200 years too...

Unreasonable.
Because it is 100-200 years too late (as a string of letters).
If there is not even shard of a proof or even a sketch, then what does it add?
If there is, we are eager to hear it....
Forum: And now for something completely different 2021-11-29, 10:34
Replies: 17
Views: 7,788
Posted By Batalov
=SB

=SB
Forum: And now for something completely different 2021-11-26, 22:09
Replies: 56
Views: 9,583
Posted By Batalov
CPAP-7 (466 digits) is not in there.

CPAP-7 (466 digits) is not in there.
Forum: And now for something completely different 2021-11-26, 22:05
Replies: 71
Views: 8,726
Posted By Batalov
Our project was completely independent -...

Our project was completely independent - independent sieve and independent testing. We do not coordinate with that site. We cannot help you (or that site) document what you for some idle reason want...
Forum: And now for something completely different 2021-11-22, 00:49
Replies: 70
Views: 5,615
Posted By Batalov
Well, if it is maintained in this way, then only...

Well, if it is maintained in this way, then only Table 1 from it is meaningful, really, because the rest is prone to a lot of errors of omission.

For example if you forget to put the 6-Tuplet...
Forum: And now for something completely different 2021-11-21, 23:10
Replies: 70
Views: 5,615
Posted By Batalov
See section "5"...

See section "5" (http://www.pzktupel.de/JensKruseAndersen/simultprime.htm#history5). What CPAPs do you see?
Then see section "6" (https://www.pzktupel.de/JensKruseAndersen/simultprime.htm#history6)....
Showing results 1 to 25 of 1000

 
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