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Approximations for the Factorial Function by Peter Luschny
Found on the MoHP forum https://www.hpmuseum.org/forum/thread-23365-post-202412.html#pid202412Mon Apr 14 17:13:58 2025 - permalink -
See also the interesting http://www.luschny.de/math/zeta/The-Bernoulli-Manifesto.html which convinced Donald Knuth to correct the definition of the Bernoulli number B_1 in his book Concrete Mathematics.
The index http://www.luschny.de/math/index.htm gives a good overview (in german).- http://www.luschny.de/math/factorial/approx/SimpleCases.html
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HP Plus RPN Calculator Comparison Table
Found on the MoHP forumSat Apr 12 15:08:25 2025 - permalink -- https://sites.google.com/view/hp-plus-calculator-comparison/home
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Keycloak - Open Source Identity and Access Management
Found on the Spritely institute forum https://community.spritely.institute/t/step-one-identity/615/3Thu Apr 10 18:50:36 2025 - permalink -- https://www.keycloak.org/
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GitHub - justinethier/cyclone: :cyclone: A brand-new compiler that allows practical application development using R7RS Scheme. We provide modern features and a stable system capable of generating fast native binaries.
Found via the Larceny benchmarks https://larcenists.org/benchmarks2017.htmlThu Apr 10 15:53:50 2025 - permalink -- https://github.com/justinethier/cyclone
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Why S7 Scheme? — Scheme For Max 0.1 documentation
Documentation for the S7 scheme interpreter, which can be found on https://ccrma.stanford.edu/software/snd/snd/s7.htmlThu Apr 10 15:39:05 2025 - permalink -- https://iainctduncan.github.io/scheme-for-max-docs/s7.html
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Blogging minus the yucky bits of the modern web
Found via Sacha Chua's blog https://lmno.lol/alvaro/journelly-vs-emacs-why-not-bothWed Apr 9 16:46:30 2025 - permalink -- https://lmno.lol/alvaro/blogging-minus-the-yucky-bits-of-modern-web
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Goodbye setq, hello setopt! | Emacs Redux
I shall change my Emacs settings to use setopt instead of setq, but consider the places where Emacs versions older than 29 are used.Wed Apr 9 11:43:38 2025 - permalink -
See https://www.reddit.com/r/emacs/comments/178em7u/why_was_setopt_introduced_in_emacs_29/?rdt=39547 for some background information.
So conditionally defining setopt to customize-set-variable on older Emacsen might be a way to unify my setup files.- https://emacsredux.com/blog/2025/04/06/goodbye-setq-hello-setopt/
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Joy-IT USB-Multimeter JT-UM120, Auswertung über PC-Software | Messtechnik
Found via the Raspberry π article https://www.raspberrypi.com/news/raspberry-pi-45w-usb-c-power-supply-on-sale-now-at-15/Mon Apr 7 11:01:06 2025 - permalink -- https://de.elv.com/p/joy-it-usb-multimeter-jt-um120-auswertung-ueber-pc-software-P253739/?gad_source=5&gclid=EAIaIQobChMIhu-PkcfFjAMVcKSDBx05My4gEAQYASABEgK2QfD_BwE
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GitHub - slewsys/ed: The Unix line editor
Branch of GNU ed maintained by its original author Andrew L. Moore.Thu Apr 3 19:50:24 2025 - permalink -
Found via https://lists.gnu.org/archive/html/bug-ed/2025-01/msg00003.html- https://github.com/slewsys/ed
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Detailed Information about the Voyager spacecraft
Sat Mar 22 14:41:36 2025 - permalink -- https://www.bernd-leitenberger.de/voyager-sonde.shtml
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My static website is generated from Org Mode, and I'm quite pleased with how it turned out : r/emacs
Found via Sacha Chua's blog https://sachachua.com/blog/2025/03/2025-03-10-emacs-news/Mon Mar 17 15:23:58 2025 - permalink -
The site (in romanian) can be seen on https://parsec.ro/. See also Josep Bigorra's blog https://jointhefreeworld.org/ and Marcin Borkowski's
https://mbork.pl/2023-07-22_Org_Clive_-_a_new_Org-mode-based_blogging_engine- https://www.reddit.com/r/emacs/comments/1j7febh/my_static_website_is_generated_from_org_mode_and/?rdt=34101
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A museum of all things computational: mechanical, mainframe, mini, micro
Forum about retrocomputing, found via a link on Norbert Landsteiner's site https://masswerk.at/lounge.phpSun Mar 16 19:18:17 2025 - permalink -
https://retrocomputingforum.com/t/some-materials-on-early-c-and-the-history-of-c/3016 looks interesting.- https://retrocomputingforum.com/
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Mailüfterl emulator
The emulator can be used on https://norbertkehrer.github.io/mailuefterl/mailuefterl.html, information on the Mailüfterl computer can be found onThu Mar 13 16:31:05 2025 - permalink -
https://norbertkehrer.github.io/mailuefterl.html
See the blog entries "Floating Point Library for the Mailuefterl Computer and More Original Mailuefterl Programs
Thursday, August 31, 2017" and
"Mailuefterl Emulator in JavaScript
Monday, July 10, 2017" on https://norbertkehrer.github.io/- https://github.com/norbertkehrer/norbertkehrer.github.io/tree/master/mailuefterl
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Lisp Machines
Blog about emulators of Lisp machines. Found via a link on the computer history wiki https://gunkies.org/wiki/LISP_machineWed Mar 12 08:00:55 2025 - permalink -- https://lisp-machine.org/
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Zadoff–Chu sequence
"A complex-valued mathematical sequence which, when applied to a signal, gives rise to a new signal of constant amplitude."Wed Mar 12 08:00:03 2025 - permalink -
It is not clear what is meant by "applied to" here.- https://en.m.wikipedia.org/wiki/Zadoff%E2%80%93Chu_sequence
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[TUHS] What would early alternatives to C have been?
Shell scripts from Rob Pike to show operator precedence in C and Go.Mon Mar 10 11:30:04 2025 - permalink -- https://www.tuhs.org/pipermail/tuhs/2025-March/031585.html
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A standard library for modeling satellite orbits on a microcomputer/ : Beutel, Kenneth L. : Free Download, Borrow, and Streaming : Internet Archive
Kenneth L. Beutel's master thesis, Naval Postgraduate School, 1988-03.Fri Mar 7 12:15:45 2025 - permalink -
Found via the post https://www.hpmuseum.org/forum/thread-23225.html on the MoHP forum.- https://archive.org/details/standardlibraryf00beut/page/62/mode/2up?view=theater
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[TUHS] DCJ-11 processor with 20k FPGA
Start of a thread on the TUHS mailing list mentioning the japanese project https://github.com/ryomuk/TangNanoDCJ11MEM/tree/mainThu Mar 6 12:41:13 2025 - permalink -
Memory system and UART implemented on Tang Nano 20K FPGA for DEC DCJ11 PDP-11 Processor.- https://www.tuhs.org/pipermail/tuhs/2025-March/031458.html
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Vinix is an effort to write a modern, fast, and useful operating system in the V programming language.
Found via the message https://www.tuhs.org/pipermail/tuhs/2025-March/031472.html on the TUHS mailing list.Sun Mar 2 22:05:36 2025 - permalink -
See https://vlang.io/ for the V programming language. Some other new programming languages are mentioned on
https://www.tuhs.org/pipermail/tuhs/2025-March/031487.html- https://github.com/vlang/vinix
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Test Set for IVP Solvers
"Both engineers and computational scientists alike will benefit greatly from having a standard test set for Initial Value Problems (IVPs) which includes documentation of the test problems, experimental results from a number of proven solvers, and Fortran subroutines providing a common interface to the defining problem functions. Engineers will be able to see at a glance which methods will be most effective for their class of problems. Researchers will be able to compare their new methods with the results of existing ones without incurring additional programming workload; they will have a reference with which their colleagues are familiar. This test set tries to fulfill these demands and tries to set a standard for IVP solver testing."Fri Feb 28 08:23:58 2025 - permalink -
Found on John Butcher's page https://www.jcbutcher.com/rkclub- https://archimede.uniba.it/~testset/testsetivpsolvers/