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Forum: Other Mathematical Topics 2022-08-10, 21:10
Replies: 5
Views: 133
Posted By slandrum
I assume you are not looking for trivial answers...

I assume you are not looking for trivial answers like x = 0, or x = 10^y
Forum: Puzzles 2022-07-26, 21:48
Replies: 12
Views: 1,383
Posted By slandrum
I am sure it is not limited to any specific...

I am sure it is not limited to any specific number of moves. In fact, for the bonus question they don't ask you to send in the actual moves, just a solvable starting state. Once you know the...
Forum: Puzzles 2022-07-25, 03:02
Replies: 12
Views: 1,383
Posted By slandrum
To make the bonus challenge more interesting,...

To make the bonus challenge more interesting, they should have given a much smaller amount to play with. I came up with a solution that adds less than 30K total to the cells, and there may be...
Forum: GPU to 72 2022-07-22, 00:30
Replies: 5,327
Views: 444,450
Posted By slandrum
Really? I see a lot of TF assignments in cat 0...

Really? I see a lot of TF assignments in cat 0 and cat 1. A couple of huge batches of TF assignments expired out a few days ago, some went immediately to FTC assignments, but most got reassigned as...
Forum: PrimeNet 2022-07-19, 18:42
Replies: 7
Views: 302
Posted By slandrum
The TF work wasn't submitted under the assignment...

The TF work wasn't submitted under the assignment ID. No updates to the PRP assignment were submitted since 14 Jun 2021, over a year before the assignment was expired. The TF results being...
Forum: Software 2022-07-19, 01:11
Replies: 675
Views: 110,585
Posted By slandrum
Caret (^) is an escape character in .cmd or .bat...

Caret (^) is an escape character in .cmd or .bat batch files, try doubling it.
Forum: Puzzles 2022-07-14, 01:52
Replies: 12
Views: 1,383
Posted By slandrum
That's how I interpreted it, and the only...

That's how I interpreted it, and the only requirement is that the result is solvable, no limit on number of moves required.

The fact that they give you up to 30M to play with is a big clue to one...
Forum: Lounge 2022-07-11, 20:44
Replies: 1,973
RIP
Views: 236,352
Posted By slandrum
It's not a matter of trust, it's a matter of...

It's not a matter of trust, it's a matter of common courtesy. If you are going to post a blind link that you think others should follow and not just ignore, then you should give some context. We...
Forum: Soap Box 2022-07-08, 19:33
Replies: 16
Views: 383
Posted By slandrum
No it does not. Uranium scattered around doesn't...

No it does not. Uranium scattered around doesn't go critical, uranium packed together and highly compressed results in a chain reaction. It's not the number of uranium atoms that's important, but...
Forum: Data 2022-07-08, 19:10
Replies: 3,610
Views: 358,557
Posted By slandrum
As for the other two exponents below 61M, they...

As for the other two exponents below 61M, they will finish processing today, and will probably be reported to the server tomorrow (the machines they are on only run 2-3 hours a day).
Forum: Soap Box 2022-07-08, 19:05
Replies: 16
Views: 383
Posted By slandrum
It's also comparing apples to bowling balls. ...

It's also comparing apples to bowling balls. Population density in the "wild" west was extremely low.
Forum: Soap Box 2022-07-06, 22:49
Replies: 167
Views: 13,154
Posted By slandrum
And more unwanted children are dumped into the...

And more unwanted children are dumped into the adoption/foster care system. I don't think it settles anything.
Forum: Puzzles 2022-07-04, 05:13
Replies: 12
Views: 1,383
Posted By slandrum
I haven't done the bonus challenge yet, but the...

I haven't done the bonus challenge yet, but the main challenge I solved in under an hour with no programming once I decided to actually work on it. I'm not sure if they intended it to be this easy.
Forum: Puzzles 2022-07-01, 17:28
Replies: 12
Views: 1,383
Posted By slandrum
No, because after any operation, the sequence is...

No, because after any operation, the sequence is reordered.
Forum: Information & Answers 2022-07-01, 17:06
Replies: 14
Views: 883
Posted By slandrum
Right - but the page has obviously been edited...

Right - but the page has obviously been edited within the last couple of years, and it's been a long time since DC was about 2 years behind FTC.
Forum: Information & Answers 2022-07-01, 03:47
Replies: 14
Views: 883
Posted By slandrum
https://en.wikipedia.org/wiki/Lucas%E2%80%93Lehmer...

https://en.wikipedia.org/wiki/Lucas%E2%80%93Lehmer_primality_test

https://en.wikipedia.org/wiki/Probable_prime
Forum: Information & Answers 2022-07-01, 00:55
Replies: 14
Views: 883
Posted By slandrum
I particularly enjoyed: I'm finding that most...

I particularly enjoyed: I'm finding that most of the double checks I'm doing are 7-9 years after the original.
Forum: Information & Answers 2022-06-30, 21:12
Replies: 4
Views: 274
Posted By slandrum
The maxexponent setting is your issue. The low...

The maxexponent setting is your issue. The low limit PRP-CF work seems to be slowing way down right now. I was getting 10-20 CERTS a day from those, in the last day I've done 2, most of my CERT...
Forum: Lounge 2022-06-28, 01:10
Replies: 1,814
Views: 116,563
Posted By slandrum
eagle eager agile gnome loves eland ...

eagle

eager agile gnome loves eland

gnome
Forum: Miscellaneous Math 2022-06-25, 04:48
Replies: 32
Views: 1,018
Posted By slandrum
Yes, that is expected. sqr(n) has positive...

Yes, that is expected.

sqr(n) has positive and negative roots, so sqr(n) mod x will be have roots y and x-y. (sqr(n) + 1)/2 + (-sqr(n) + 1)/2 = 1
Forum: Lounge 2022-06-22, 05:15
Replies: 1,814
Views: 116,563
Posted By slandrum
longs larks opine never going south ...

longs

larks opine never going south

opine
Forum: MattcAnderson 2022-06-17, 08:09
Replies: 1
Views: 157
Posted By slandrum
For a list of the first few primes, it's "odd"...

For a list of the first few primes, it's "odd" that you leave off the very first one.

PS yafu is just a factoring utility. It's not a general purpose math package.
Forum: Lounge 2022-06-17, 08:05
Replies: 9
Views: 449
Posted By slandrum
I don't like this series because it grows very...

I don't like this series because it grows very slowly, and computation of any element requires looking at every previous element. There's no elegant way of working on part of the series or extending...
Forum: MattcAnderson 2022-06-16, 20:29
Replies: 4
Views: 251
Posted By slandrum
.

.
Forum: MattcAnderson 2022-06-16, 03:27
Replies: 4
Views: 251
Posted By slandrum
3*3 > 5*2 ?

3*3 > 5*2 ?
Showing results 1 to 25 of 440

 
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