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Search: Posts Made By: xilman
Forum: Lounge 2021-06-14, 11:57
Replies: 1,736
RIP
Views: 164,534
Posted By xilman
Yeah, but who is the better known?

Yeah, but who is the better known?
Forum: Lounge 2021-06-12, 17:02
Replies: 13
Views: 251
Posted By xilman
I have some elderly machines in the attic, some...

I have some elderly machines in the attic, some of which still work just fine.

I can't handle anything pre-CP/M, sorry, but there is an excellent chance that MS-DOG 3.x will still boot. Whether...
Forum: Soap Box 2021-06-12, 16:55
Replies: 78
Views: 10,541
Posted By xilman
AKA The Golden Rule. He who has the gold...

AKA The Golden Rule.

He who has the gold makes the rules.
Forum: Languages -- Ancient & Modern, Human & Machine 2021-06-12, 16:54
Replies: 16
Views: 5,517
Posted By xilman
There are those who would state that phi is the...

There are those who would state that phi is the least irrational of the irrational numbers. Its continued fraction representation is the most structured possible: [1;1,1,1,1,1,1,1,1,1,1,1,...]
...
Forum: Languages -- Ancient & Modern, Human & Machine 2021-06-12, 16:03
Replies: 16
Views: 5,517
Posted By xilman
One of the best links for investigating multiple...

One of the best links for investigating multiple languages, IME, is http://rosettacode.org/wiki/Rosetta_Code

I've contributed a number of examples in Algol 68, including one which is, IMAO, by far...
Forum: Science & Technology 2021-06-11, 18:08
Replies: 2,898
Views: 234,137
Posted By xilman
In my view is that it takes skill to explain...

In my view is that it takes skill to explain anything. I'm pretty sure that Richard Feynman could have made an excellent attempt.

At a different level, I have successfully taught basic...
Forum: Lounge 2021-06-11, 16:44
Replies: 396
Views: 56,306
Posted By xilman
Please read that documentation, it is hilarious. ...

Please read that documentation, it is hilarious.


My favourite snip from that site: "Dolly Parton our Asset Manager". Well, if you want someone to handle your assets, pick someone who has them...
Forum: XYYXF Project 2021-06-11, 07:14
Replies: 465
Views: 89,828
Posted By xilman
Not sure whether you realise this, but that's the...

Not sure whether you realise this, but that's the reason why these numbers have been singled out and given a particular name.

Long ago I pointed out that they seem to have a reasonable density of...
Forum: MattcAnderson 2021-06-10, 13:45
Replies: 11
Views: 326
Posted By xilman
:poop: happens. See also Murphy's Law. If...

:poop: happens. See also Murphy's Law.

If you don't care about the universe and everything (who does) the following might aphorisms may help.

Life is a four-letter word.
Life is a sexually...
Forum: Astronomy 2021-06-10, 13:28
Replies: 42
Views: 3,253
Posted By xilman
100% covered and very unimpressive down in...

100% covered and very unimpressive down in Somerset where I was this morning.
Forum: Hobbies 2021-06-06, 16:06
Replies: 111
Views: 33,240
Posted By xilman
Anything with red berries is not a bamboo.

Anything with red berries is not a bamboo.
Forum: Factoring 2021-06-05, 10:48
Replies: 319
Views: 7,939
Posted By xilman
I'm willing to throw in some cycles but it is not...

I'm willing to throw in some cycles but it is not clear how up to date is the booking list in the spreadsheet .

Could you create a post which contains the current state of play and to encourage...
Forum: Astronomy 2021-06-04, 21:04
Replies: 17
Views: 6,856
Posted By xilman
Nereid and (16095) Lorenball

Here is the third largest and brightest satellite of Neptune. It was the second discovered, after Triton, and the second easiest to image from these parts. Proteus is in second place in the first two...
Forum: Miscellaneous Math 2021-06-04, 11:56
Replies: 10
Views: 310
Posted By xilman
If you want to run them, please go ahead and run...

If you want to run them, please go ahead and run them. No-one will stop you.
Forum: Hobbies 2021-06-03, 21:27
Replies: 111
Views: 33,240
Posted By xilman
A depth of 24" should be adequate. It is rare in...

A depth of 24" should be adequate. It is rare in my experience for the rhizomes to go more than 12" deep.
Forum: Hobbies 2021-06-03, 10:40
Replies: 111
Views: 33,240
Posted By xilman
One further thing: the specimen shown in the web...

One further thing: the specimen shown in the web site is likely at least 30 years old. Unless you pay an absolute fortune you will get a plant with a diameter of a foot or less at the base and it...
Forum: Hobbies 2021-06-03, 08:56
Replies: 111
Views: 33,240
Posted By xilman
I've never seen that particular site or material...

I've never seen that particular site or material before, but that is exactly the sort of stuff that is is recommended by the experts.
F. rufa is a very nice bamboo. I have one myself. It is well...
Forum: Astronomy 2021-06-02, 12:58
Replies: 17
Views: 6,856
Posted By xilman
HST has several advantages It has an...

HST has several advantages


It has an aperture six times that of mine, which corresponds to 36 times the light grasp, so there's 4 magnitudes for a start
It has a dark sky: no light pollution,...
Forum: Astronomy 2021-06-02, 09:37
Replies: 17
Views: 6,856
Posted By xilman
Two years later I had another go at Sycorax. Same...

Two years later I had another go at Sycorax. Same telescope, different camera and a longer exposure.

Sycorax is much easier to see this time. The star marked with an asterisk is mag. 19.03. A...
Forum: Prime Gap Searches 2021-06-01, 12:57
Replies: 18
Views: 1,235
Posted By xilman
I'd like to see you walk from the Earth to the...

I'd like to see you walk from the Earth to the Moon.
Forum: Prime Gap Searches 2021-05-30, 19:32
Replies: 18
Views: 1,235
Posted By xilman
About a milligram of sand if I calculate...

About a milligram of sand if I calculate correctly.

Easily visible but not especially large --- about 1mm across.
Forum: Operation Billion Digits 2021-05-30, 19:25
Replies: 11
Views: 961
Posted By xilman
Not necessarily. A proof may be forthcoming...

Not necessarily.

A proof may be forthcoming that all Mersenne numbers with exponents of a particular form must be prime and all others must be composite.

Likewise, there may be a proof that M_n...
Forum: Operation Billion Digits 2021-05-30, 16:05
Replies: 11
Views: 961
Posted By xilman
Go ahead if that's what floats your boat. It's...

Go ahead if that's what floats your boat. It's your time, your hardware and your power bill.

As others have pointed out, the likelihood of finding a prime in your lifetime is somewhere between nil...
Forum: Factoring 2021-05-30, 15:59
Replies: 36
Views: 1,372
Posted By xilman
If you can represent your numbe rN as the value...

If you can represent your numbe rN as the value of as a polynomial of degree 4-8 (depending on size of number) with coefficients all of which are very small with respect to N, you are within the SNFS...
Forum: Hobbies 2021-05-29, 13:03
Replies: 111
Views: 33,240
Posted By xilman
A. americana flowers much younger in optimum...

A. americana flowers much younger in optimum growing conditions. At the limits of its range it can indeed take a century or more to flower.

Some plants are growing happily in gardens outdoors only...
Showing results 1 to 25 of 1000

 
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