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Forum: Number Theory Discussion Group 2020-07-10, 14:07
Replies: 5
Views: 89
Posted By retina
Exercise for the O.P. If p = 1 mod 6, how...

Exercise for the O.P.

If p = 1 mod 6, how many cubic residues does it have? how many non-residues?
What about p = -1 mod 6? Did you bother at all to even try to answer your own question?
...
Forum: Soap Box 2020-07-08, 12:21
Replies: 306
Views: 12,246
Posted By retina
It is also a term used for the members of the...

It is also a term used for the members of the subculture.

https://www.dictionary.com/browse/mod
Strangely dictionary.com doesn't list the red coloured folks "mod" definition. :davar55:
Forum: Soap Box 2020-07-08, 11:50
Replies: 306
Views: 12,246
Posted By retina
https://en.wikipedia.org/wiki/Mod_%28subculture%29

https://en.wikipedia.org/wiki/Mod_%28subculture%29
Forum: Tales From the Crypt(o) 2020-07-06, 04:54
Replies: 17
Views: 488
Posted By retina
So it appears that the central servers were...

So it appears that the central servers were compromised by the police, and then they delivered a poisoned "security" update to the devices. It's not clear if "security" updates were mandatory or not,...
Forum: Hardware 2020-07-05, 22:44
Replies: 12
Views: 360
Posted By retina
Sure, you could do all that. But at 130nm and...

Sure, you could do all that. But at 130nm and 10mm x 10mm you would be doing well to fit just one multiply unit on the chip.

And what RAM interface would you use? With no space for internal caches...
Forum: Hardware 2020-07-05, 10:53
Replies: 12
Views: 360
Posted By retina
Loss leader. Get a few happy customers to...

Loss leader.

Get a few happy customers to say "works great" and start raking in the dosh from others.
Forum: Computer Games 2020-07-04, 22:39
Replies: 39
Views: 5,433
Posted By retina
Pingus, for Linux, is very similar.

Pingus, for Linux, is very similar.
Forum: Computer Games 2020-07-04, 08:19
Replies: 39
Views: 5,433
Posted By retina
For me: Lemmings

For me: Lemmings
Forum: News 2020-07-04, 03:21
Replies: 98
Views: 3,701
Posted By retina
My preference is for much less disk space, and...

My preference is for much less disk space, and more compute requirement.

Some of my crunching machine don't even have disks, they are just network booted into memory.

I think everybody has been...
Forum: Tales From the Crypt(o) 2020-07-04, 02:15
Replies: 17
Views: 488
Posted By retina
http://factordb.com/index.php?query=2^1024-1Wrench...

http://factordb.com/index.php?query=2^1024-1Wrenches won't help when the data has been wiped. But wenches might help, if you play it right.
Forum: Tales From the Crypt(o) 2020-07-03, 23:35
Replies: 17
Views: 488
Posted By retina
Which is not useful today unless you are using a...

Which is not useful today unless you are using a TI calculator to send your messages.

Wake me when they, or anyone, can factor 1024 bit numbers. :yawn:
Forum: Lounge 2020-07-03, 09:42
Replies: 53
Views: 2,017
Posted By retina
Yes.[/QUOTE]So 1.102635043×10¹⁵ HzDays equals...

Yes.[/QUOTE]So 1.102635043×10¹⁵ HzDays equals 95.2676677152 ExaCycles.

With the bid at $50 <= bid < $100, that makes it between:
952,676,677.152 GCycles/$ and 1,905,353,354.304 GCycles/$

Or,...
Forum: Tales From the Crypt(o) 2020-07-03, 09:07
Replies: 17
Views: 488
Posted By retina
So the MITM device was installed on the phone....

So the MITM device was installed on the phone. Even easier for the police, just grab the plaintext.

So the question remains how was the malware installed? A compromised server delivering...
Forum: Tales From the Crypt(o) 2020-07-03, 05:26
Replies: 17
Views: 488
Posted By retina
Self published "about" pages can make as many...

Self published "about" pages can make as many wonderful claims as they wish. But unless the code and protocols have been properly scrutinised and the implementation independently verified then such...
Forum: Tales From the Crypt(o) 2020-07-03, 04:53
Replies: 17
Views: 488
Posted By retina
No. It clearly wasn't robust. If it was then it...

No. It clearly wasn't robust. If it was then it wouldn't matter how many MITM devices were in the connection.

My guess is the client simply trusted the destination. So for A talking to B, the MITM...
Forum: Tales From the Crypt(o) 2020-07-03, 04:15
Replies: 17
Views: 488
Posted By retina
The service protocol was hacked by police with a...

The service protocol was hacked by police with a MITM device. Nothing new to see here. When discussing your criminal activities with people don't use insecure services that don't have E2E encryption,...
Forum: Lounge 2020-07-01, 13:00
Replies: 950
Views: 36,259
Posted By retina
I don't see any reason why there would be an...

I don't see any reason why there would be an arbitrary upper limit. You could have 7, or M7, simultaneously.
Forum: Aliquot Sequences 2020-07-01, 06:09
Replies: 7
Views: 154
Posted By retina
We have a forum for those. And now your...

We have a forum for those.

And now your thread is here.
Forum: Aliquot Sequences 2020-07-01, 05:56
Replies: 7
Views: 154
Posted By retina
Right. So you mean Aliquot...

Right. So you mean Aliquot (https://en.wikipedia.org/wiki/Aliquot_sum).
Forum: Aliquot Sequences 2020-07-01, 04:39
Replies: 7
Views: 154
Posted By retina
What is Aliaut Sum?

What is Aliaut Sum?
Forum: Hardware 2020-06-30, 13:04
Replies: 11
Views: 225
Posted By retina
4EvrYng: Try more options. You tested 10 x 1...

4EvrYng: Try more options.

You tested 10 x 1 and 1 x 10.

Also test 5 x 2 and 2 x 5

Plus other splits like: 3,3,4 and 2,2,3,3.

Even options that don't use all the cores: 4,4 and 3,3,3 and...
Forum: Miscellaneous Math 2020-06-29, 06:51
Replies: 11
Views: 262
Posted By retina
Haha, if someone wants to believe in hidden...

Haha, if someone wants to believe in hidden patterns and secret formulas then let them have at it. Sometimes the cranks are the most entertaining posters.

:crank:
Forum: Data 2020-06-29, 02:26
Replies: 3,272
Views: 200,729
Posted By retina
lolapus also has 499 TF assignments at 52M ...

lolapus also has 499 TF assignments at 52M

https://www.mersenne.org/assignments/?exp_lo=52000000&exp_hi=53000000&execm=1&exdchk=1&exfirst=1&exp1=1

No expiry date. No ETA.

Why does the server...
Forum: Science & Technology 2020-06-27, 22:38
Replies: 228
Views: 19,342
Posted By retina
Thanks for the ref. But I find the last one...

Thanks for the ref.

But I find the last one a completely useless "machine". A machine those has no output isn't much of a machine at all. You couldn't even shine a light on it to see if it is...
Forum: Science & Technology 2020-06-27, 13:03
Replies: 228
Views: 19,342
Posted By retina
I don't know if there is an accepted formal...

I don't know if there is an accepted formal definition of perpetual motion, but IMO is means something that creates/generates more output energy than is input. So that is more than simply staying in...
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