chemoelectric

chemoelectric, 11 months ago to random

I will say this for R*st: it is encouraging people to write some decent small system programs.

Same thing goes for Go. In that case it seems to be largely duplication of things written in C, however. It does kind of prove, though, that C++ is garbage, because no one did the same thing with C++. :)

Doing it with D would be nice but Go just happens to be more popular. I prefer D, if only because Go is incomprehensible by comparison. I have no idea what it means. D still looks like C.

chemoelectric, 7 months ago to random

@pfpoitras Using the current round of Nobel announcements to make it topical, I just submitted a letter to Science with the derivation ρ = ½(+1)(+1) sin²(α − β) + ½(+1)(−1) cos²(α − β) + ½(−1)(+1) cos²(α − β) + ½(−1)(−1) sin²(α − β) = − cos 2(α − β), saying it was so simple it did not deserve more than a letter, but crediting it to ‘the agnosticism of mathematics’ and pointing out that this meant the problem was transformable outside of QM. I called for reexamination of past analyses.

chemoelectric, 6 months ago to random

You see the problem with a ‘quantum’ algorithm such as Grover’s? It operates on a ‘superposition’, but the ‘superposition’ is purely a mathematical construct.

It IS NOT the physical state of affairs, unless you have a massively parallel system. It simply CANNOT be.

I do not care how many physicists you get to say it is, it IS NOT.

So Grover’s algorithm is some kind of cheating. I might as well give up trying to convert it to an efficient digital algorithm, because it isn’t efficient, period.

chemoelectric, 10 months ago to random

I know you are curious what is involved in replacing the diaphragm of a vintage Parker Vacumatic-filler of the aluminum rationing-and-later era.

(I’ve never done the early kind, where you can use such things as heated pins to remove the pellet.)

The diaphragm is a rubber sac held in place by a plastic pellet inside it, with the end of the sac, and the pellet, pushed through a hole in a rubber cup. So it is basically a snap-into-place fastening.

Sometimes you can just pull it out.

chemoelectric, 7 months ago to ArtificialIntelligence

What #computers need is not "#quantum" but devices that can return general non-uniform random numbers in (effectively) unit time. These can be crafted more cheaply and reliably in ordinary silicon, no doubt.

chemoelectric, 9 months ago to random

@pfpoitras Okay, this is a simplified version of the other one: https://pastebin.com/eTsJ7ynJ

It gets about S=2.5.

Now, mind you, it does so by some of the signals being rejected by the ‘signal exchanges’. I’m not CERTAIN it is possible to get past S=2 any other way, using CHSH’s extremely primitive correlation coefficient.

Using a Pearson’s correlation coefficient, sure, that’s what Kracklauer does. One can get 2*sqrt(2) easily. The challenge here is how to defeat the primitive CHSH arrangement.

chemoelectric, 7 months ago to random

Wait a second. There exist people who thought Gillian Anderson was British? https://universeodon.com/@georgetakei/111359656787468516

chemoelectric, 10 months ago to random

Oh, puhleez: https://mastodon.social/@br00t4c/110848582058130274

(And, yes, I am going to use the ‘I am a Jew’ shield. Do not come at me for saying ‘Oh, puhleez’ to this nonsense expansion equation of ‘These people are Nazis for persecuting me!’ to ‘Donald Trump is equating being him being prosecuted to the Holocaust’. Do you not see it is you fools who are doing the equation?)

chemoelectric, 5 months ago to random

Who likes my old-school (but not vintage) multimeter? These are supposed to be very good. I have had it long but haven't had many opportunities to use it.

I also have a fancy but garbagy digital multimeter made from a kit, and one of those under $10 digital ones that work fine.

chemoelectric, 1 year ago to random

Some strange person out there is suggesting Algol 60 went out of use because of an effort by IBM to kill it in favor of Fortran.

Meanwhile, they post the first 100 ACM algorithms, in which we repeatedly see algorithms printed in Algol 60, but the authors pointing out they implemented in Fortran (and the CDC Fortran had 4 levels of recursion, it seems). IOW, Algol 60 served from the beginning as an algorithm-printing language.

chemoelectric, 9 months ago to random

I think Burroughs #Algol had * as a similar notation. At least I saw such a notation in a friend’s code. He was studying CS at Seton Hall U. in the 1980s. So they must have been teaching on Burroughs stack machines. (Yes, in those days they still sometimes taught programming with decent programming languages. My one course used Ratfor on Unix BTW, with a textbook on F77 (go figure), but I wasn’t studying CS.)

Target Name Symbol (@) — learn.adacore.com https://learn.adacore.com/courses/whats-new-in-ada-2022/chapters/assignment_target.html

chemoelectric, 8 months ago to random

@pfpoitras Can you design a quantum computer program that does the exact same thing as one simulation step of my Python animation? It should be very simple. One qubit and some filter and then a measurement and it is done.

Obviously I do it as a Monte Carlo with sines and cosines, and also just as obviously (because the OTHER is the extraordinary claim, and it is way, way WAY beyond extraordinary) this is what actually is going on in the physical world.

chemoelectric, 10 months ago to random

Be careful if the air is bad where you are. Wear an N95 mask outside. I didn’t and regretted it.

chemoelectric, 11 months ago to random

I can't tell the difference between talking to an AI and talking to an AI developer.

chemoelectric, 9 months ago to random

Oh, lordie, I see where some of these people object to my simulation analysis—where I'm also probably doing it differently from how Kracklauer did it.

The thing is, if the complainers could do math, they would see it makes no difference!

But we will change it, just the same, in this version.

chemoelectric, 10 months ago to random

I don't think certain lawyer person realized an ordinary citizen, regardless of education level, isn't even capable of understanding whatever it was he was trying to explain to me today about what a juror is supposed to be doing.

I am pretty sure it was not, in fact, meaningful English. But, if it were, it was not English anyone but a lawyer could understand. Therefore it is absolutely USELESS to a juror.

That this conundrum would not occur to a lawyer does not surprise me!

chemoelectric, 7 months ago to random

Embed fonts in PDF using Ghostscript https://gist.github.com/SoerenHenning/6c3556e3c6ce1570b3919751ebf52ba3

chemoelectric, 1 year ago to random

I really have no idea WTF a Git ‘branch’ is. It seems to have nothing to do with tree branches, the way Mercurial branches do.

chemoelectric, 10 months ago to random

What’s ‘apt remove command’? Doesn’t one remove with ‘emerge -c’ or ‘emerge -C’? And OF COURSE that doesn’t remove your settings.

chemoelectric, 9 months ago to random

@pfpoitras I am still working on my CHSH-style counterexample to outright DISPROVE that stuff. It seems more difficult than I expected, but people who believe Bell would obviously never even have tried.

But I would like to show very simply that ‘Bell’s theorem’ is without foundation. What Bell does has been thousands and thousands of times, by people in other fields, but only in physics has it ever been accepted as valid. It is well known to be invalid. It is INFAMOUSLY invalid....

chemoelectric, 5 months ago to random

Okay, I have a die set coming today, and if I can fix my Dremel with it I can cancel the order for the new Dremel.

Though the new Dremel is the new version with a brushless motor.

Nevertheless.

Of course the tap and die set costs as much as the new Dremel. But you see the advantage.

chemoelectric, 1 year ago to science

Here is some significant #ATS code, albeit not an optimized implementation: #QRDecomposition (#QRFactorization) for #RosettaCode --

https://rosettacode.org/wiki/QR_decomposition#ATS

#ATSlang #LinearAlgebra #NumericalMethods #Mathematics

chemoelectric, 9 months ago to random

@pfpoitras I changed the comments some but not the program (except some string literals): https://pastebin.com/eTsJ7ynJ

chemoelectric, 8 months ago to random

Do you know what’s useful to me about this? That it is Householder reflections. That means I may be able to understand it, despite that the whole thing is written in a physicist cipher rather than regular mathematical notation: https://en.wikipedia.org/wiki/Grover%27s_algorithm

chemoelectric, 8 months ago to random

A lot of people will argue with me because I am observing things and they are repeating what other people have said.

They will often not even realize they are merely repeating what other people have said.

On occasion I have been able to SHOW that they are repeating what other people have said.

--

It is a phenomenon similar to one I realized some years ago. I realized that some memories of my childhood were actually memories of photographs in my mother’s photo album.