"In today's video, we'll take a look at my grandfather's vintage HP-45 #calculator from 1973"—so he opens.

As an #EE who used #HP #RPN calculators for my whole career, that word, "grandfather", hit me hard.

https://youtu.be/56nq_FNll6Q?si=m-he0vNtIriQTzhO

Anyone else ever used a #rpn #calculator? I've been using a #SwissMicros DM15L and I LOVE it soooo much. One of the best calculators I've ever used.

Wake up... TUIs are taking over the web.

**tusistor**: A resistor calculator for both terminal and web.

Try it out: https://www.function-type.com/tusistor

Written in Rust & built with @ratatui_rs (ratzilla)

GitHub: https://github.com/dawedawe/tusistor

So, Projekt SR-56 vorläufig abgeschlossen. Alles funktioniert. Höchstens nochmal alles aufmachen für eine Grundreinigung innen. Und mal sehen, wie man die sichtbaren Blessuren kaschieren könnte. Vielleicht die Tasten retro-brighten? Der Batteriefach-Deckel ist 3D-gedruckt, weil‘s mit dem Original alles zu eng war. Die 1150 mAh des LiPo Akkus sind fast doppelt so viel Energie, wie die originalen NiCd Akkus! #TexasInstruments #Taschenrechner #Calculator #LiPo #restauration #sr56 #3dprinting

Casio Calculator Gets New Keyboard - What do you do with a circa 1985 Casio FX-451 calculator with a bad keyboard? Well... - https://hackaday.com/2025/02/01/casio-calculator-gets-new-keyboard/ #handheldshacks #retrocomputing #calculator #keyboard #casio

Done: Meton, a mechanical moon phase calculator.

https://www.thomasweibel.ch/meton/

[x] design
[x] model
[x] 3d print
[x] build

#moon #newmoon #fullmoon #lunisolar #calculator #antiquity #archaeology #greece #babylon #mathematics #astronomy #physics #astrophysics #mechanics #simulation #opendata #openglam #glamhack #3dprint #physicalcomputing @paulfoerster

When our backup #pump failed on the #Oregon #homestead, I built a #calculator to figure out what we really needed. It’s a small, #opensource tool born from necessity and a few iterations with #SelfHosted #ai

https://sij.law/thinking-like-a-developer-pt-1/

This is a Facit C1-13. It’s a mechanical calculator from the late 1950s.

There are a number of Facit models, and their designs are all captivating to me. As are the manual designs.

Lots more on the Facit machines from Jaap Scherphuis:
https://www.jaapsch.net/mechcalc/facit.htm

My virtual #moonphase calculator Meton @ https://www.thomasweibel.ch/meton/ is to become real, as a physical acrylic glass model, based on ancient Babylonian and Greek #astronomy and with an accuracy of just one day's deviation in 60.5 years. While v1 is being laser cut, here's already v2. Call me a moonatic.

A Mechanical Calculator For The Modern Age - There was a brief period through the 1960s into the 1970s when the last word in el... - https://hackaday.com/2024/12/26/a-mechanical-calculator-for-the-modern-age/ #mechanicalcalculator #classichacks #calculator #woodwork

Going Digital: Teaching a TI-84 Handwriting Recognition - You wouldn’t typically associate graphing calculators with artificial intelligence... - https://hackaday.com/2024/12/24/going-digital-teaching-a-ti-84-handwriting-recognition/ #convolutionalneuralnetwork #artificialintelligence #graphicscalculator #texasinstruments #machinelearning #handheldshacks #neuralnetwork #handwriting #ti-84plusce #calculator #mnist #ti-84 #news

First Fantasy: Mana Force v5.2.0 for the TI-84 Plus CE #calculator

https://www.cemetech.net/downloads/files/1277

Retro Calculator Build Proves the Space Age Isn’t What It Used to Be - The common wisdom these days is that even if we wanted to get back to the Moon the... - https://hackaday.com/2024/11/14/retro-calculator-build-proves-the-space-age-isnt-what-it-used-to-be/ #retrocomputing #calculator #74hc192 #decade #rotary #retro #dial #ne-2 #neon

Just been in a meeting with my faculty's disability support people, where they said they were trying to buy an accessible scientific calculator for a visually impaired student to use in exams.

Googling, I found this - https://www.visionaid.co.uk/calculators/sciplus-3300---scientific-calculator-with-speech - which has the assistive tech margin added for a cost of £535!

Meanwhile, I know the Desmos calculator is accessible and free, so it'd be cheaper to just buy a cheap tablet or laptop and use that!

Are there any other accessible scientific calculators that they should look at?

I mean, they're not hard to make in software. I've made several myself.

Solve: An ESP32-Based Equation Solving Calculator - We’re suckers for good-looking old-school calculators, so this interesting numeric... - https://hackaday.com/2024/10/15/solve-an-esp32-based-equation-solving-calculator/ #numericalsolver #newton-raphson #calculator #toolhacks #3dprinted #esp32