The Computer And General Tech Thread - Software, Hardware, Questions, etc.

[WarpedWartWars]

"1895, George MacDonald, Lilith‎[1]:

She began to moan, and sigh deep sighs, then murmur as holding colloquy with a dividual self: her queendom was no longer whole; it was divided against itself."

Where? I don't see that quote there.

[Rounin Ryuuji]

"1895, George MacDonald, Lilith‎[1]:

She began to moan, and sigh deep sighs, then murmur as holding colloquy with a dividual self: her queendom was no longer whole; it was divided against itself."

Where? I don't see that quote there.

It was right there on the screen when I looked up the word. I do not know what else to tell you.

[WarpedWartWars]

Where? I don't see that quote there.

It was right there on the screen when I looked up the word. I do not know what else to tell you.

I was looking at the Merriam-Webster dictionary, and it isn't there. And searching "define dividual", I still don't see it.

[Rounin Ryuuji]

Oh, I was looking at Wiktionary.

[rotting bones]

There are trade-offs between space and time complexity.

The complication here is with Unicode canonical equivalence. The example here is as follows:
A sequence of n copies of U+07F3 is canonically equivalent to a sequence of n copies of U+07F1 followed by n copies of U+07F2. Thus, with the requirement that the set of strings recognized is closed under canonical equivalence, /\u07F3*/ is not a regular expression (since it matches strings of the form aⁿbⁿ for all n)

As far as I'm aware, this level of Unicode-awareness is not generally found it regex engines

If I understand this correctly, it seems to violate the assumption of strings in a fixed alphabet.

Yes. If you think of a monoid (semigroup with a (distinguished) identity) of strings in a fixed alphabet, then there is a moderately well known generalisation that allows some pairs of letters in the alphabet to commute. This is known by various names - trace monoid, free partially commutative monoid, independence monoid. A key point is that a process that is compliant to the Unicode Standard shall not deliberately yield different results for canonically equivalent strings. Now there is a theorem (Sakarovitch, 1992) that says it is undecidable as to whether a rational expression (one formed by union, concatenation and Kleene star) in Unicode characters defines a regular expression for the trace of Unicode strings under canonical equivalence.

This paper says the trace monoids represent parallel or concurrent programs, the commutation representing the ambiguity in finishing times. Distributed architectures are known to be weaker than Turing Machines.

[Raphael]

I just got a software update for an e-reader I bought in 2017. I'm somewhat happy about that, because these days, all too many electronic gadget makers would tell owners of gadgets which are almost five years old that we should buy a newer model instead of still sending us software updates.

[Travis B.]

I have been creating more wiki pages documenting zeptoforth for the general user. My wiki pages do not cover everything by any means but form a basic set guides for informing the user, especially with regard to less standard zeptoforth functionality.

[Raphael]

What's the point of Blu-Ray discs?

No, I'm not talking about how all optical data media are obsolete these days, what with streaming services and near-omnipresent pirated stuff. I'm one of the three people in the world who still occasionally spend money on DVDs myself. No, my point is more like this:

The parts of the internet where I don't think I can comment on whether I've ever visited them or not without talking to my lawyers first seem to be full of files ripped from Blu-Rays that keep Blu-Ray quality, but fit it neatly into a number of bytes that would fit comfortably on a DVD. Or so I hear. So why not simply put a Blu-Ray quality video file on a DVD, instead of using a whole new different medium?

[Ryusenshi]

Remember that Blu-Ray discs are already 15 years old. Video encoding formats have kept improving, to the point that now it's possible to encode a Full HD film into a file that could fit on a DVD - if you have the brand-new codec to read it, and if your computer is powerful enough to decode it in real-time.

But if you have mid-Noughties codecs, and you have to freeze the format; and you want to start making players that read the format in real time, and sell them at a reasonable price; and you want it out of the gate soon, because Full HD is now a thing... Well, the only way is to increase the capacity.

[Raphael]

Ah, thank you! They're that old already? Wow, time flies past...

[alice]

This reminds me that it was nearly 25 years ago that I interviewed for a job writing a "DVD Authoring System", which was the first time I'd heard of DVDs.

[Raphael]

I just rediscovered the old (2007) Richter Scales song and video Here Comes Another Bubble, to the tune of We Didn't Start The Fire:

https://www.youtube.com/watch?v=I6IQ_FOCE6I

And I was struck by how current a lot of it still seems to be, despite it being 15 years old.

[Raphael]

What's the "W3C [Validator]" there?

w3c.png (18.68 KiB) Viewed 4632 times

[bradrn]

What's the "W3C [Validator]" there?

w3c.png

Presumably https://validator.w3.org/ or similar.

[Travis B.]

zeptoforth 0.45.0, now with SDHC/SDXC card and FAT32 filesystem support, is out!

[Raphael]

What's the "W3C [Validator]" there?

w3c.png

Presumably https://validator.w3.org/ or similar.

Thank you!

[Ryusenshi]

Well, that's it: I've finally got rid of my last Windows OS. As of now, all my computers are running Linux or BSD.

[Travis B.]

Well, that's it: I've finally got rid of my last Windows OS. As of now, all my computers are running Linux or BSD.

I've been running Linux since over 20 years ago myself. This machine theoretically has Windows on it, but I've only booted into it twice, the second time to verify that a web application I wrote worked on Chrome under Windows so I could actually claim that I'd tested it on Windows.

[Ares Land]

Windows is strictly forbidden in the house here. It knows what it did.

[Raphael]

Windows is strictly forbidden in the house here. It knows what it did.

What if, at some point in the future, one of your kids wants to use a windows-only software?