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by Heater
Sat Jul 18, 2020 3:36 am
Forum: Graphics programming
Topic: Shelly – a programming language to draw in the browser
Replies: 16
Views: 1106

Re: Shelly – a programming language to draw in the browser

That's kinda cool.

There is something up with the Hilbert space filling curve though. With all those extra wide gaps it is never going to fill all the space.
by Heater
Fri Jul 17, 2020 10:27 pm
Forum: Other programming languages
Topic: Anyone else using .NET Core 3.1 and ASP.NET Core?
Replies: 18
Views: 885

Re: Anyone else using .NET Core 3.1 and ASP.NET Core?

C# and other .NET languages support BigInteger type, so big number math is not a problem! That is OK then. Should be a trivial task. Let's see how it flies! Where is the Rust version? ;) It should take about 100 ms or less to calculate and about second or less with calculation + output... I was ner...
by Heater
Fri Jul 17, 2020 5:44 pm
Forum: General discussion
Topic: Help ... how to run python code?
Replies: 10
Views: 437

Re: Help ... how to run python code?

...I just want to learn what method was used to run the python code in background.... Assuming it is actually running in the background all the time then use of "ps" can show you who or what has run it. For example: $ ps xauf ... root 5285 0.0 0.1 164424 7700 ? Sl heinä06 0:00 \_ gdm-session-worker...
by Heater
Fri Jul 17, 2020 4:00 pm
Forum: Other programming languages
Topic: Anyone else using .NET Core 3.1 and ASP.NET Core?
Replies: 18
Views: 885

Re: Anyone else using .NET Core 3.1 and ASP.NET Core?

When someone posts statistics about how languages handle tests (especially those such as Fibonacci) they also lose all credibility , because in the real world, no client gives a damn about that test and no real world system performs that way. Hmm... this might be surprising but I'm pretty sure ever...
by Heater
Fri Jul 17, 2020 2:43 pm
Forum: C/C++
Topic: Accessing UART0 and UART1 (14,15 & 32,33)
Replies: 1
Views: 294

Re: Accessing UART0 and UART1 (14,15 & 32,33)

Is there a library that supports notifications on pin 32 and 33, or rather the entire GPIO range 0-43? Or can the pigpio library be extended to support more GPIOs? https://ibb.co/JK51Y83 I'm not sure I understand your question correctly. I have never used a library like pigpio to communicate throug...
by Heater
Fri Jul 17, 2020 7:23 am
Forum: Other programming languages
Topic: Anyone else using .NET Core 3.1 and ASP.NET Core?
Replies: 18
Views: 885

Re: Anyone else using .NET Core 3.1 and ASP.NET Core?

This will be my last word on the topic, as I don't want to propagate the negativity. However these few comments need to be said (by me). ... Following which you embark on on a majorly negative all out attack on pretty much everyone who has commented here. Insulting them and besmirching their charac...
by Heater
Thu Jul 16, 2020 5:33 pm
Forum: General discussion
Topic: Downloading media from various sites
Replies: 13
Views: 590

Re: Downloading media from various sites

In fact, under a lot of countries' laws I own copyright on this post, except... Now I have not checked but many forums such as this have terms and conditions that you agree to by registering with them. Those terms and conditions may well involve assigning copyright to the forum for anything you pos...
by Heater
Thu Jul 16, 2020 4:24 pm
Forum: Off topic discussion
Topic: Pis...the answer is Pis!
Replies: 64
Views: 3424

Re: Pis...the answer is Pis!

Speaking as a mathematics teacher, my opinion is that if you are using any computer in education, not familiarising students with mathematical software is similar to discouraging students from using word processors and spell checkers when writing term papers. Arguably getting students to learn to w...
by Heater
Wed Jul 15, 2020 2:40 pm
Forum: Other programming languages
Topic: Trouble installing npm SQLite on Raspberry pi zero
Replies: 1
Views: 359

Re: Trouble installing npm SQLite on Raspberry pi zero

If I were you I would: 1) Install the Node Version Manager (nvm): https://github.com/nvm-sh/nvm $ sudo apt-get install curl $ curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash 2) Use the nvm to install the latest stable version of node.js: $ nvm install node You may nee...
by Heater
Wed Jul 15, 2020 12:25 pm
Forum: Off topic discussion
Topic: Pis...the answer is Pis!
Replies: 64
Views: 3424

Re: Pis...the answer is Pis!

Seems RPI has huge linguistic/social/ethnic biases, too huge to be of any help when it would be most useful. It certainly does not. Or at least that is an unfounded, unsubstantiated accusation. Where do you get that idea from? I can imagine that is a gigantic task to provide materials in every lang...
by Heater
Wed Jul 15, 2020 12:15 pm
Forum: Other programming languages
Topic: Anyone else using .NET Core 3.1 and ASP.NET Core?
Replies: 18
Views: 885

Re: Anyone else using .NET Core 3.1 and ASP.NET Core?

Another snide dig at anything Microsoft ? Or just more 'my favoured language is better than your language' baiting ? Neither. What's with all the negativity? Simply my, not so good, way of hinting that I'm not totally ignorant of C#. If I wanted to do some language bashing on it I have many other r...
by Heater
Wed Jul 15, 2020 10:04 am
Forum: Other programming languages
Topic: Anyone else using .NET Core 3.1 and ASP.NET Core?
Replies: 18
Views: 885

Re: Anyone else using .NET Core 3.1 and ASP.NET Core?

You do not. Please excuse my misunderstanding. In my defense though, you made no mention in your post of being able to install any of these tools and libraries onto a Pi nor how to use them there. It was all about using them from a Windows machine. As such I think my confusion was a natural consequ...
by Heater
Wed Jul 15, 2020 7:23 am
Forum: Off topic discussion
Topic: Worst "production" Pi hardware installation
Replies: 26
Views: 1786

Re: Worst "production" Pi installation

Reminds me that in the spring time I had a Pi apparently floating in space with cables hanging off it like that. Except in my case it was stuck to a window with some heavy duty double sided sticky tape so that it's camera could see out. That worked fine for some weeks. Until a lot of condensation ac...
by Heater
Tue Jul 14, 2020 1:38 pm
Forum: General discussion
Topic: Downloading media from various sites
Replies: 13
Views: 590

Re: Downloading media from various sites

If I wanted to do that I would: Create my web server and associated server side software with Javascript running under node.js: https://nodejs.org/en/ and using the Express node module to make the web server part dead easy: https://expressjs.com/ One might want a database behind that to keep track o...
by Heater
Tue Jul 14, 2020 1:30 pm
Forum: Other programming languages
Topic: .Net core question
Replies: 12
Views: 670

Re: .Net core question

Looks interesting. How do we develop and build things like Butters.I2DYNAMIX.com on a Raspberry Pi?
by Heater
Tue Jul 14, 2020 7:00 am
Forum: Other programming languages
Topic: Anyone else using .NET Core 3.1 and ASP.NET Core?
Replies: 18
Views: 885

Re: Anyone else using .NET Core 3.1 and ASP.NET Core?

I was kinda surprised that there isn't a language forum for it yet.... Given what you say next I don't understand why you are surprised: ...Blazor WebAssembly which lets me use c# on the CLIENT side replacing javascript - in a single file with the html - which of course I write in Visual Studio 201...
by Heater
Mon Jul 13, 2020 10:59 pm
Forum: General discussion
Topic: Raspberry Pi for industrial applications.
Replies: 15
Views: 721

Re: Raspberry Pi for industrial applications.

There are several forum categories in the Raspberry Pi forums. Perhaps 1 of these forum categories involve the Raspberry Pi computer being used in certain businesses. Why speculate? A quick look shows there is not. If there was a list of projects or commercial products that utilize the Raspberry Pi...
by Heater
Mon Jul 13, 2020 6:05 pm
Forum: Off topic discussion
Topic: Worst "production" Pi hardware installation
Replies: 26
Views: 1786

Re: Worst "production" Pi installation

I don't see a problem - all my Pis are mounted like this. It has the advantage that you can't drop a screwdriver on it, and it can't accidentally touch a conductive surface. Though admittedly I think the ethernet cable should have a half-hitch to hold it in place, otherwise it'll unthread itself wh...
by Heater
Mon Jul 13, 2020 4:45 am
Forum: Other programming languages
Topic: Anyone using Rust on a PI ?
Replies: 72
Views: 19389

Re: Anyone using Rust on a PI ?

That does not look so elegant anymore.
by Heater
Mon Jul 13, 2020 3:05 am
Forum: Other programming languages
Topic: Anyone using Rust on a PI ?
Replies: 72
Views: 19389

Re: Anyone using Rust on a PI ?

Not sure if its what you mean,... I mean is that Python did not do what I expected. In Rust I can write: fn mess_up_slice( s: &mut [i32]) { s[0] = 0; } ... let mut v = vec![1, 2, 3, 4, 5, 6]; println!("{:?}", v); mess_up_slice(&mut v[2..3]); println!("{:?}", v); Which produces: [1, 2, 3, 4, 5, 6, 7...
by Heater
Sun Jul 12, 2020 10:08 am
Forum: Off topic discussion
Topic: Forum registration has wrong UTC
Replies: 12
Views: 930

Re: Forum registration has wrong UTC

See "The Problem with Time & Timezones - Computerphile": https://www.youtube.com/watch?v=-5wpm-gesOY

Trying to get all that crap right is hopeless I'm afraid.
by Heater
Sun Jul 12, 2020 10:04 am
Forum: General discussion
Topic: Which OS is the fastest ?
Replies: 48
Views: 1802

Re: Which OS is the fastest ?

So this thread is not about the speed of the OS. It's about a particular program. We know nothing of said program except there was mention of iris recognition and Python somewhere. Python itself may or may not be the problem. If that recognition task is using OpenCV libraries or Tensorflow or whatev...
by Heater
Sat Jul 11, 2020 8:41 am
Forum: General discussion
Topic: Raspberry Pi for industrial applications.
Replies: 15
Views: 721

Re: Raspberry Pi for industrial applications.

You have some unfounded speculations there: 1) That the Pi models you linked to have gone away. They have not. As noted above. 2) That the Pi Foundation would magically generate lots of income by targeting industry specifically. That is not so clear to me. There have been many producers of SBC for u...
by Heater
Fri Jul 10, 2020 9:21 pm
Forum: General discussion
Topic: RPi 3A+ broken after a while
Replies: 6
Views: 259

Re: RPi 3A+ broken after a while

fqvarnstrom wrote:
Fri Jul 10, 2020 9:11 pm
pi-anazazi wrote:
Tue Jul 07, 2020 7:55 am
fqvarnstrom wrote:
Mon Jul 06, 2020 11:51 am

Seems RPi 3A+ has the rush in the current problem, which was fixed from 2B?
Is there a reference for this statement?
No idea, just guts feeling
So please don't post baseless "gut feelings" to the internet. It only confuses people. The web is full enough of mis-information as it is.
by Heater
Fri Jul 10, 2020 8:37 pm
Forum: General discussion
Topic: Linux WIFI Not Supported by Spectrum/Charter?
Replies: 42
Views: 1281

Re: Linux WIFI Not Supported by Spectrum/Charter?

Surely, this is all much ado about nothing. All they mean when they say "We won't support" is "We won't talk to you on the phone". Except emma has said that the Pi does not work with said router: "I should mention again the LAN works on Pi and it don't complain about WIFI SID or any errors but alwa...

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