Senza categoria – Paolo Redaelli https://monodes.com/predaelli A civil engineer with a longlife fondness for Software Libero Tue, 27 May 2025 22:19:01 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.2 91795679 Fast iterative circles (and ellipses, and other figures). https://monodes.com/predaelli/2025/05/28/fast-iterative-circles-and-ellipses-and-other-figures/ https://monodes.com/predaelli/2025/05/28/fast-iterative-circles-and-ellipses-and-other-figures/#respond Tue, 27 May 2025 22:18:59 +0000 https://monodes.com/predaelli/?p=13473 a[data-mtli~="mtli_filesize420MB"]:after {content:" (4.20 MB)"}Fast iterative circles (and ellipses, and other figures). Here’s the entire algorithm to compute points on an elliptical arc, very…]]>

Fast iterative circles (and ellipses, and other figures).

Here’s the entire algorithm to compute points on an elliptical arc, very quickly:

    while(true)
    {
        x += d * y;
        y -= d * x;
    }

Attributed to Marvin Minsky, 1972: HAKMEM, MIT AI Memo 239 (HTML version here). Also on a PDP-1, David Mapes talks about finding it independently. I’ve been using this to make circles since I found it by accident in the early 1980s (using a BBC Micro). Nowadays I’m using it to make music synthesizers (running on ARM Cortex M4).

Source: https://cabezal.com/misc/minsky-circles.html ]]> https://monodes.com/predaelli/2025/05/28/fast-iterative-circles-and-ellipses-and-other-figures/feed/ 0 13473 1505 → ultimavoce.it https://monodes.com/predaelli/2025/05/22/1505-%e2%86%92-ultimavoce-it/ https://monodes.com/predaelli/2025/05/22/1505-%e2%86%92-ultimavoce-it/#respond Thu, 22 May 2025 19:51:22 +0000 https://monodes.com/predaelli/?p=13418 https://www.ultimavoce.it/progetto-gutenberg-sito-sequestrato 1505 terze parti.

]]> https://monodes.com/predaelli/2025/05/22/1505-%e2%86%92-ultimavoce-it/feed/ 0 13418 Nokia feature phones by HMD https://monodes.com/predaelli/2025/05/21/nokia-feature-phones-by-hmd/ https://monodes.com/predaelli/2025/05/21/nokia-feature-phones-by-hmd/#respond Wed, 21 May 2025 17:24:28 +0000 https://monodes.com/predaelli/?p=13408 Siccome è la millesima volta che dovendo cercare un cellulare “tipo Nokia” devo cercarlo online, conviene che lo metto qui:

I cellulari Nokia ora li fa HMD!

]]> https://monodes.com/predaelli/2025/05/21/nokia-feature-phones-by-hmd/feed/ 0 13408 Liberty Eiffel: Successful languages have bearded designers https://monodes.com/predaelli/2025/05/03/liberty-eiffel-successful-languages-have-bearded-designers/ https://monodes.com/predaelli/2025/05/03/liberty-eiffel-successful-languages-have-bearded-designers/#respond Fri, 02 May 2025 22:51:10 +0000 https://monodes.com/predaelli/?p=13274 Time has come to rewrite or update Liberty Eiffel: Successful languages have bearded designers as all the external photos went offline! Shame on me!

]]> https://monodes.com/predaelli/2025/05/03/liberty-eiffel-successful-languages-have-bearded-designers/feed/ 0 13274 Ikemen GO – Open Source Fighting Engine https://monodes.com/predaelli/2025/04/27/ikemen-go-open-source-fighting-engine/ https://monodes.com/predaelli/2025/04/27/ikemen-go-open-source-fighting-engine/#respond Sun, 27 Apr 2025 08:08:24 +0000 https://monodes.com/predaelli/?p=13243

Ikemen GO is an open source fighting game engine that supports M.U.G.E.N resources, made in the Go programming language.

Source: Ikemen GO – Open Source Fighting Engine

]]> https://monodes.com/predaelli/2025/04/27/ikemen-go-open-source-fighting-engine/feed/ 0 13243 +164 tg24.sky.it https://monodes.com/predaelli/2025/04/23/164-tg24-sky-it/ https://monodes.com/predaelli/2025/04/23/164-tg24-sky-it/#respond Wed, 23 Apr 2025 15:44:28 +0000 https://monodes.com/predaelli/?p=13228 Come sono morigerati a sky, solo 164 terze parti!

https://tg24.sky.it/mondo/video/2025/04/23/funerali-papa-francesco-sicurezza-roma-bazooka-san-pietro

]]> https://monodes.com/predaelli/2025/04/23/164-tg24-sky-it/feed/ 0 13228 https://monodes.com/predaelli/2025/04/20/13165/ https://monodes.com/predaelli/2025/04/20/13165/#respond Sun, 20 Apr 2025 08:03:06 +0000 https://monodes.com/predaelli/?p=13165 Cercado perché il lunedì dopo Pasqua si chiama “Lunedì dell’Angelo”:

noi e 974 selezionate, potremmo utilizzare dati di …

Source: Famiglia Cristiana

]]> https://monodes.com/predaelli/2025/04/20/13165/feed/ 0 13165 Rarebit | HTML Webcomic Template https://monodes.com/predaelli/2025/04/16/rarebit-html-webcomic-template/ https://monodes.com/predaelli/2025/04/16/rarebit-html-webcomic-template/#respond Wed, 16 Apr 2025 17:24:55 +0000 https://monodes.com/predaelli/?p=13120 Rarebit | HTML Webcomic Template

A free, open-source WEBCOMIC TEMPLATE Built in HTML and JavaScript

If you’re a webcomic artist who wants to be in complete control of their domain and how their comic is presented, but the idea of using Tumblr or WordPress with ComicPress sounds unappetizing, Rarebit is for you.

]]> https://monodes.com/predaelli/2025/04/16/rarebit-html-webcomic-template/feed/ 0 13120 Rolando https://monodes.com/predaelli/2025/04/13/12279/ https://monodes.com/predaelli/2025/04/13/12279/#respond Sat, 12 Apr 2025 22:11:51 +0000 https://monodes.com/predaelli/?p=12279

Io sono di Gesù

Rolando Rivi (7/01/1931-13/04/1945) Beato

]]> https://monodes.com/predaelli/2025/04/13/12279/feed/ 0 12279 History of GNOME https://monodes.com/predaelli/2025/04/02/history-of-gnome/ https://monodes.com/predaelli/2025/04/02/history-of-gnome/#respond Wed, 02 Apr 2025 20:16:00 +0000 https://monodes.com/predaelli/?p=13071

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