Elias Mårtenson

Lisp, Emacs, APL and a bunch of other stuff.

From Sweden, living in Singapore.

I always work on a bunch of projects. My current major ones are:

A graphical frontend to Maxima: https://github.com/lokedhs/maxima-client

KAP: An APL-based programming language: https://codeberg.org/loke/array

#lisp #commonlisp #apl #retrocomputing #linux #kap #climaxima #emacs #atari

Public Key

npub1j8h2ujcusyuxrfvl8mh2jmwwv32g2cxadhev7pvvaftyv40resdq5zhmxe

NIP-05 Address

[email protected]

Profile Code

nprofile1qqsfrm4wfvwgzwrp5k0nam4fdh8xg4y9vrwkmuk0qkxw54jx2h3ucxspz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0ds2zvgty

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1j8h2ujcusyuxrfvl8mh2jmwwv32g2cxadhev7pvvaftyv40resdq5zhmxe

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Last Notes

2024-06-12 07:09:06

Can someone knowledgeable in C++ tell me why someone would declare a class member like so:
double x { 0.0 };
Rather than:
double x = 0.0;
These should do the same thing, but surely the second in much more clear?

2024-06-11 18:53:46

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@npub198t…hasj Isn't it supposed to be a loop of string, which are then connected to a keyring? That allows both the drive and the cover to be connected to the string so they are not lost, even when the cover is removed.

2024-06-08 18:08:53

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@npub1up2…k6en the Sparcstation didn't use ps2 though. Is it compatible with the kvm?

2024-04-17 15:05:00

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@npub1p45…89jz you used to do stuff on the C64? Have you revisited it recently?

2024-04-09 12:20:54

While working on the function graph support in my language, I just randomly did a plot of cos(x) and sqrt(x) at the same time, and noted that they cross at about x=0.641.
My question to all the #maths people out there: Is there an analytic solution to this?

2024-04-02 05:13:11

Reading an article about EV's here. I don't think I'll be able to own an Audi e-tron.
https://functional.cafe/system/media_attachments/files/112/199/431/741/011/168/original/08218d8e078a7be3.jpg

2024-03-30 09:42:02

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@npub1p45…89jz isn't that when apparently this hack started? Did they read your post and thought we can do that?

2024-03-28 18:55:51

@npub1up2…k6en is that behind the glass? Won't that block a lot of the UV light?

2024-03-25 18:02:47

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@npub198t…hasj I wonder how the security is on that thing. Can anyone see what you're viewing?

2024-03-10 14:22:23

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@npub14zy…2z57 Wow. Responses like that explains why the industry looks the way it does.

2024-03-07 09:58:47

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@npub1p45…89jz Oh wait, you're right. Libcurl on riscos links with openssl, so that should be fine.

2024-03-02 10:13:58

I'm not a car guy, and I've never cared that much for drones for some reason.
But this marries the two ideas together. If they manage to do these kind of things for an actual race, I might actually watch.
https://www.youtube.com/watch?v=9pEqyr_uT-k

2024-02-23 09:19:28

Amazon S3 is "designed to provide" 99.999999999% durability [...] of objects over a given year" (reference)
That's a lot of 9's.
Except that this number is completely useless. What does that even mean?
If I store 100 GB in a year I should expect to lose one byte? That doesn't sound reassuring?

2024-02-17 12:53:02

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@npub1axm…dsle Your comments have caused be to rethink the entire idea of uploading to youtube in the first place.
Of course invidious is better than not using it, and in the case I need to link to one of the videos, I'd definitely use it if I remember to.

2024-02-17 11:56:37

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@npub1axm…dsle Oh, I don't disagree. It doesn't make me feel any better about having to use them though.

2024-02-17 11:46:29

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@npub1axm…dsle Invidious just hides the problem up google abusing people's content. I'd much prefer to not upload anything to them at all.
I really need to find a peertube server that is reliable (I've had issues with my instance). I'd definitely pay for it, just not 60 dollars per month.

2024-02-17 11:25:00

I've had to turn off the Peertube server, since paying 60 SGD per month for just a handful of views is not worth it.
I'm putting some of my Kap screenshares on youtube for now, even though it gives me a horrible bad taste in my mouth.
If anyone has some suggestions for alternatives that are less costly, I'd love to hear them.
https://www.youtube.com/watch?v=qH5FCPEgqJ0

2024-02-11 18:17:04

I just booked tickets for the Arch Enemy concert in Singapore. Really looking forward to this one.
#metal #singapore

2024-02-05 05:20:25

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@npub1gv8…uu0q Same here in Singapore. And if you want to make an amendment (like an extra deduction), you can log in to a webpage and fill it in.
I just checked with an Indian colleague, and it was explained to me that they do it the same way. The employer send the information to the tax authority and everything is handled automatically. India also has different states, and they manage to do it where the US fails.

2024-02-04 10:05:59

Inspired by @npub1dyd…g0g2 here's money cat.
https://functional.cafe/system/media_attachments/files/111/872/412/528/026/303/original/6f674349a58b8ac5.png

2024-01-31 05:32:43

Vinyl records are very similar to wristwatches. It's an object that is used to provide a thing. The thing it provides is much better provided by other means, and most people who use the object don't even use it for the primary purpose for which is was made.
But it's a beautiful object. It is an implementation and perfection of a technology we don't really need these days, but its manifestation is something we all want to hang on to, because losing it would make the world a worse place.
I personally don't collect vinyl nor watches, but I can fully understand the reason why people want to. And to be honest, I do get tempted to buy the odd record once in a while, even though I don't even own a record player.

2024-01-28 07:09:04

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@npub14nt…2m6q Some of these are really interesting. What did you use to make them? I'd love to see the code behind them.

2024-01-22 06:10:24

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@npub1a24…etnp did you watch this? https://youtu.be/hUhisi2FBuw?si=_ByFe5wT-9Dwrc1F

2024-01-19 16:31:03

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@npub1h8s…cvp3 It looked like it flipped upside down just as it touched down. The trust indicators looked like they were all firing as well?

2024-01-18 04:17:52

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@npub1vlh…f6as Are you spending time in Singapore, or just changing flights? (plenty of people here who along with myself are ready to provide suggestions for where to eat :-) )

2024-01-18 03:52:49

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@npub1vlh…f6as which airport are you stuck at? Your tone of voice makes it sound like CDG.
Changi is pretty good though. Youtube is full of travel videos to the airport

2024-01-15 08:56:16

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@npub12k9…auw9 @npub1vlh…f6as You never paid for the binoculars. That's the explanation.

2023-12-29 06:15:11

Oracle, WTF are you doing?
I mean, I dislike Oracle business practices as much as the next guy, but even with their priorities in mind, I cannot fathom why this happens.
Imagine in you will, you are a Windows user who wants to download Java (for example, in order to run Kap, which requires Java 17 to be installed). What do you do? Probably search for "windows java download".
This is where you're sent: https://www.java.com/en/download/
Ah, the download page for Java, you may think.
The headline reads:Java Downloads for XX
Where XX is the operating system you are using.
Below that you can read:Recommended Version 8 Update 391
Java 8!? The one that was released in 2014 went out of free support back in 2019?
What... the actual...?
I now challenge you to find any link to newer versions. In fact, find any reference to the existence of other versions at all. None.
The actual download link is: https://www.oracle.com/java/technologies/downloads/
Of course, while writing this I note that there is paid support until 2030. So perhaps there is a reason for this behaviour after all.

2023-12-26 10:00:53

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@npub1jeq…jglm After reading your review, I downloaded the third game from Steam and started playing.
It's good. But it sure is difficult to see what you are actually fighting, since you have to constantly look at the bullets.
Is the second game better?

2023-12-23 12:04:23

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@npub1c5s…2cjq It's a game. The goal is to get the highest number.

2023-12-23 08:53:18

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@npub1jeq…jglm I have never seen any Boll movie, but I remember reading that Postal was one of the few that was actually not terrible.
I mean, based on what I've heard about the other movies, I wouldn't expect a masterpiece, but I was surprised that it was given somewhat positive reviews.
Now, I tend to trust you more than random comments from a couple of decades ago, so I was wondering if you've seen any of his other movies?

2023-12-19 05:08:25

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@npub13t0…vj4p very much so. The problem is that these tools make creating really bad illustrations incredibly easy. In this particular case, the article was a lot worse for it

2023-12-18 08:31:38

I just read an blog post (on Medium, which somehow feels appropriate in this case). The content was, well, OK. It was pointing out yet another way in which modern software development management is broken.
However, it was illustrated with a series of supervillain-style illustrations that felt wrong. This in itself isn't very rare. A lot of people just shove random illustrations into their blog posts.
But in this case, the illustrations followed a single theme, and it was just... well... wrong.
Then I noticed that in one of the pictures the hero held out their hands, and being some kind of monster character, they didn't have 5 fingers. But each hand had a different number of fingers.
That's when I went back and realised why it simply didn't work. This wasn't just random pictures, but the author had tried to make it thematic. The end result was even worse than what you'd have ended up with if they had simply used some stock images.

2023-12-14 17:36:32

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@npub1up2…k6en wait what. Model 30 wad 8086? I do remember it being kinda bad, but not that bad. I'd have thought 286 at least.

2023-12-14 06:53:31

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@npub1up2…k6en Intel fan I see 🙂

2023-11-27 09:47:11

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@npub16uk…pv7k @npub1vz8…708j What makes things worse is that even if you want to do it correctly, especially Word makes it unreasonably difficult to do so because every time you dare to paste anything into the document you have no idea what the styling is.
Brought to you by "Oh, this must be a header 1, it looks ljust like the others. Nope, it's a header 2 that has been manually styled", and other bestsellers.

2023-11-16 04:47:00

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@npub12f7…lkxh wouldn't that be a legal problem rather than technical?

2023-10-20 05:16:37

So I was looking at a fresh youtube feed (an environment that usually doesn't touch anything google and without being logged in). As I was scrolling down the list of videos I noted that it was nothing but clickbait. This is what youtube is these days.
And then I see this ad (or message, or whatever you want to call it) from google. How ironic.
https://functional.cafe/system/media_attachments/files/111/265/168/077/263/411/original/ea3b26e5d073da89.png

2023-09-26 06:04:22

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@npub178h…hyhr Ouch, that's painful. Is this typical?

2023-09-25 11:05:30

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@npub178h…hyhr Single units at 22 SGD on Aliexpress: https://www.aliexpress.com/item/4000033605288.html
I suppose the price goes down drastically if you order a few thousand 🙂

2023-09-12 05:54:35

There is a risk I'm going to anger half the Fediverse but it has to be said:
I see people posting about the correct way to use pyenv and not following it up with "...and this is why the Python ecosystem is horrible", and my immediate thought is that these people suffer from Stockholm syndrome.

2023-09-06 19:39:31

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@npub1xkg…gph9 wait what? I mean I've for a long time made fun of people doing "technical analysis"of cryptocurrencies. It's numerology.
Now, I've never heard about these terms. This appears to go even deeper into the crazyness than what I've ever seen.
Where can I read more about this?

2023-09-05 10:20:16

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@npub15c7…suze Wow. That looks amazing. I think I'll buy this. I hope the gameplay lives up to the visuals.

2023-08-13 16:22:00

This is amazing. The "crypto industry" is already so ridiculous that the people who are in cannot tell if they're being trolled.
https://youtu.be/xmVt8lC74ns

2023-08-12 18:41:52

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@npub1683…f0qg To me, the main issue is that once again the US is incompatible with the rest of the world.
Now, I know that the charging ports were already incompatible, so sticking with the US version of the CCS port wouldn't really be much of a difference.

2023-08-05 09:22:15

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@npub1lj7…zczx The former owner of the handle is still firmly committed to twitter though.
I think musk knows that he can do whatever he wants to his fanboys and they'll still defend him.

2023-08-05 07:16:13

I've been reading up of electronics and circuit design, and I find it very interesting. However, I don't have any hardware to experiment with at the moment, and I'd probably break things even if I did.
Is there a simple circuit simulation tool I can use to learn how to build simple things?
I don't need a full design tool, and I just want something that is simple and easy so that I can test things as I read about them.

2023-07-14 19:06:09

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@npub19kv…m4nu well, yes. XML has one thing sexps does not. It has the ability to be parsed and programmatically modified without changing the structure or comments.
Doing that with sexp would require a new type of internal representation. Such representation may exist but I'm not familiar with it

2023-07-03 18:32:13

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@npub19z9…u5j0 Wait where in Chinatown is this?

2023-06-26 08:35:36

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@npub15yw…htxl @npub1j0s…xp04 @npub10xg…h39u @npub1pwx…xk5j I heard this one here:
"I'm so annoyed that they don't serve bread at Indian restaurants"
"What do you mean?"
"Every time I ask for it they say they have naan"

2023-06-21 11:33:40

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@npub1r7v…qwpu In which house can I hear Skinny Puppy? That's the one I pick.

2023-05-13 15:11:44

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@npub198t…hasj it drives on the front wheel?

2023-04-25 16:08:39

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#[0] I've never seen it in any of the places I've lived, both in Sweden and Singapore. I've never had an AC in Sweden, but in Singapore they're everywhere. In my current house I have 4 units and two separate compressors.

2023-04-25 05:23:41

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#[0] In any case, it doesn't really matter if this one will work or not.
A lot of people want it, and if there is no "official" solution, an unofficial one will be created, be it this or another one, and there is very little if anything any of us can do about it.
It would have been nice to have some kind of privacy-respecting federated search, but given the situation that would probably never get broad acceptance, so eventually someone like google will just suck it all up, use it for their index (and language model training) and we're all worse off.
None of this is good news.

2023-04-25 05:16:15

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#[0] It appears to be an index of instances, not of posts on said instance. Or am I missing something?

2023-04-16 17:14:03

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#[0] #[1] I'm so glad it was never called the "poundtag".
Is the symbol called pound anywhere outside the US by the way?