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Search: Posts Made By: retina
Forum: Software 2021-04-20, 05:28
Replies: 7
Views: 128
Posted By retina
... then fix your system. It is no fun...

... then fix your system.

It is no fun running wonky a system.
Forum: Miscellaneous Math 2021-04-20, 04:15
Replies: 26
Views: 538
Posted By retina
It is easy to rewrite it to make it clearer.for p...

It is easy to rewrite it to make it clearer.for p in range(3, 608):
x = 2**p-1
xx = pow(9, x//p//2, x)
Forum: Miscellaneous Math 2021-04-20, 03:58
Replies: 26
Views: 538
Posted By retina
You do realise that x.bit_length() == p, right?

You do realise that x.bit_length() == p, right?
Forum: Lounge 2021-04-19, 13:54
Replies: 1,090
Views: 77,667
Posted By retina
It is both. Since WP is always 100% accurate...

It is both.

Since WP is always 100% accurate and knows everything:

https://en.wikipedia.org/wiki/Unmanned_aerial_vehicle
https://en.wikipedia.org/wiki/Helicopter
Forum: News 2021-04-17, 20:52
Replies: 328
Views: 60,984
Posted By retina
There isn't much to publish. "We ran some...

There isn't much to publish.

"We ran some existing software which we already talked about in the last publication, using already known algorithms, and discovered a prime. There was no award from...
Forum: Lounge 2021-04-16, 03:46
Replies: 4,280
Views: 320,907
Posted By retina
Yes, you are correct. I was blind. -e^pi <...

Yes, you are correct. I was blind.

-e^pi < ||x|| <= e^pi
Forum: Lounge 2021-04-15, 16:12
Replies: 4,280
Views: 320,907
Posted By retina
Works for any x (((x^ⅈ)^ⅈ)^ⅈ)^ⅈ = x

Works for any x

(((x^ⅈ)^ⅈ)^ⅈ)^ⅈ = x
Forum: Soap Box 2021-04-15, 16:09
Replies: 44
Views: 4,894
Posted By retina
Or, at least, so they claim. That excuse...

Or, at least, so they claim.

That excuse doesn't work in places where guns are not freely available.

Rogue cop: "I thought his cell phone was a gun, your honour, so I shot him."
Judge:...
Forum: Lounge 2021-04-15, 11:15
Replies: 4,280
Views: 320,907
Posted By retina
The eyes have it

When: ⅈ = √-1

Then: (((ⅈ^ⅈ)^ⅈ)^ⅈ)^ⅈ = ⅈ

And ⅈ^ⅈ^ⅈ^ⅈ^...^ⅈ^ⅈ converges to ~ 0.438282... + 0.360592...ⅈ
Forum: Hardware 2021-04-12, 14:21
Replies: 35
Views: 986
Posted By retina
With 256GB RAM, I wonder about the purpose of the...

With 256GB RAM, I wonder about the purpose of the 8GB swap?
Forum: Software 2021-04-11, 17:28
Replies: 7
Views: 173
Posted By retina
You have just encountered the standard time...

You have just encountered the standard time estimation problem.

There are many things that can make estimates bad. Perhaps the most likely is that you are running other higher priority tasks which...
Forum: Puzzles 2021-04-11, 11:07
Replies: 5
Views: 155
Posted By retina
That is the correct answer. :tu: People...

That is the correct answer.

:tu:

People here are too smart to fool so easily. :smile:What about travelling at infinite speed?
Forum: Puzzles 2021-04-11, 10:18
Replies: 5
Views: 155
Posted By retina
Please give the answer to the question.

Please give the answer to the question.
Forum: Puzzles 2021-04-11, 08:34
Replies: 5
Views: 155
Posted By retina
Doubling your average speed?

You are at the beginning of a perfectly flat and perfectly straight section of road that is exactly 1000 metres long (d = 1000 metres).

You are wearing a Super-Chronograph 9000 stopwatch which can...
Forum: Miscellaneous Math 2021-04-11, 05:56
Replies: 79
Views: 3,259
Posted By retina
If enough people make enough predictions (i.e....

If enough people make enough predictions (i.e. they simply cover all possible exponents) then it will happen that someone will guess the next prime.

And of course we know the reaction: They will...
Forum: Homework Help 2021-04-09, 20:23
Replies: 20
Views: 914
Posted By retina
Hmmm? Your number ends in ...00 Squaring...

Hmmm?

Your number ends in ...00
Squaring +1 gives ...0001
The number in #1 ends in ...1529
Forum: Soap Box 2021-04-07, 17:08
Replies: 46
Views: 1,154
Posted By retina
It is soooo convenient

At the counter of the grocery store ...

Me: Can I buy this ice-cream with bitcoin here?

Cashier: Yes sir, no problem.

Me: How?

Cashier: Just get out your computer, connect to the...
Forum: Soap Box 2021-04-06, 08:32
Replies: 366
Views: 41,392
Posted By retina
Verkada Inc. gave ’20-Year-Old Interns’ a ‘Super Admin’ privilege to look in on feeds

https://dailycaller.com/2021/03/11/verkada-security-cameras-super-admin-hackers-security-breach/
Forum: Science & Technology 2021-04-05, 13:31
Replies: 190
Views: 9,472
Posted By retina
The UK is delaying the second dose in order to...

The UK is delaying the second dose in order to get more people with the first dose. So I'd guess that it doesn't matter much if you leave it till next week, or next month.
Forum: Soap Box 2021-04-05, 02:26
Replies: 46
Views: 1,154
Posted By retina
With standard, or normal, currencies at least you...

With standard, or normal, currencies at least you know who is manipulating it. And might have the opportunity to vote them out in the next election if things don't go your way. Can you say the same...
Forum: PrimeNet 2021-04-04, 10:40
Replies: 2,127
Views: 205,315
Posted By retina
I fairly sure that LaurV gave the correct answer...

I fairly sure that LaurV gave the correct answer there. But I want to give a "better" answer. :devil:

Forget about all those old GHzDays that were run on the ancient 6502 CPUs. Those cycles are...
Forum: Tales From the Crypt(o) 2021-04-04, 07:19
Replies: 280
Views: 67,818
Posted By retina
533 million Facebook users’ phone numbers, personal information exposed online

https://www.washingtonpost.com/business/2021/04/03/facebook-data-leak-insider/ And yet people still provide all the data, for free. :loco:
Forum: Factoring 2021-04-04, 02:21
Replies: 23
Views: 623
Posted By retina
In a perfect world that would be true. But, alas,...

In a perfect world that would be true. But, alas, we all fall for it. That includes those of you reading this and saying to yourself "Not me, I am immune because I know the tricks". The effects can...
Forum: Factoring 2021-04-02, 19:50
Replies: 23
Views: 623
Posted By retina
Good. Not putting sensitive information on a...

Good. Not putting sensitive information on a connected system for malware (and that includes Windows) to grab.

But I feel you might have missed the point. A lot of the arguments about privacy...
Forum: Factoring 2021-04-01, 21:03
Replies: 23
Views: 623
Posted By retina
Mint:

Mint:
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