Creating a New Keyboard Flex for an Old Calculator https://hackaday.com/2025/08/12/creating-a-new-keyboard-flex-for-an-old-calculator/ #RepairHacks #calculator #PCBHacks #flatflex #flexPCB

Creating a New Keyboard Flex for an Old Calculator - [Menadue] had a vintage Compucorp 326 calculator with an aging problem. Specifical... - https://hackaday.com/2025/08/12/creating-a-new-keyboard-flex-for-an-old-calculator/ #repairhacks #calculator #pcbhacks #flatflex #flexpcb

Looking for a libre alternative to Desmos online graphing calculator? (https://www.desmos.com/calculator)

I found grapk.tk!

It used to be on https://graph.tk, but that address no longer works - yet the name of the project remains.

So it's now here:
https://graph.equation.io/

Source on Github:
https://github.com/aantthony/graph.tk

Picked up a couple of circa-1975 calculators from Goodwill. Cleaned up the first, a Texas Instruments SR-10 "electronic sliderule". It just needed cleaning and fresh NiCad batteries.

Is there any FOSS calculator app that is reliable?

Tried a few and it seems like they all have potential issues with complex calculations due to source code out of date or not fully tested.

Explain to me why "Here is an online #calculator application website thingy" is the most logical response here in my fucking start menu?!
#Microsoft please, I'm forced to work with this bullshit #OS, but if it can't even do basic math faster than I can do it in my head, what use are you?

I just love this vintage tech, which still works. One could use the calculator on the mobile phone of course, but this is way more fun (and more beautiful) ...

8 Bit Mechanical Computer Built from Knex https://hackaday.com/2025/07/20/8-bit-mechanical-computer-built-from-knex/ #mechanicalcomputer #computerhacks #calculator #mechanical #computer #knex #math #ALU

8 Bit Mechanical Computer Built from Knex - Long before electricity was a common household utility, humanity had been building... - https://hackaday.com/2025/07/20/8-bit-mechanical-computer-built-from-knex/ #mechanicalcomputer #computerhacks #calculator #mechanical #computer #knex #math #alu

#lineart Instrument your Texans for your calc! #calculator

Part of me feels like I can predict the results of this, but the #fediverse surprises me often.

When you use your #calculator (or calculator app), do you use #RPN mode?

(Please boost for reach)

A Neural Net For a Graphing Calculator? https://hackaday.com/2025/07/17/a-neural-net-for-a-graphing-calculator/ #ArtificialIntelligence #graphicscalculator #texasinstruments #MachineLearning #handheldshacks #neuralnetwork #calculator #ti-84

A Neural Net For a Graphing Calculator? - Machine learning and neural nets can be pretty handy, and people continue to push ... - https://hackaday.com/2025/07/17/a-neural-net-for-a-graphing-calculator/ #artificialintelligence #graphicscalculator #texasinstruments #machinelearning #handheldshacks #neuralnetwork #calculator #ti-84

Hrmm, writing small programs isn't too difficult once you know where the functions are, but I don't know how to make them easily accessible which would be nice via the menuing system. Also, the documentation for the `db48x` firmware kinda stops at the programming section.

The new SwissMicros DM42n came in and this thing is awesome and also built like a mini tank. Got the `db50x` firmware installed as well and it's gonna take some time to figure out where everything is at. However, absolutely loving this thing.

Para quienes usan #android les recomiendo #calculator++, una calculadora muy buena con gestos.
https://f-droid.org/es/packages/org.solovyev.android.calculator/

The last really good thing TI ever did. How do I know? Because they're still selling a dumbed down version of this same machine. The TI-92 was really a general purpose computer with a computer algebra system as it's front end. With a 10mhz MC68000 and 64k of RAM it could be made to do all sorts of interesting things! #calculator #retrocomputing #ti

Neuer Blog-Post: Ich habe mir mal – aus gegebenem Anlass – den derzeitigen TI-30 Taschenrechner angeschaut, den TI-30X Pro MathPrint. #texasinstruments #ti30 #ti30xpro #taschenrechner #calculator https://blog.metawops.de/taschenrechner/Der-TI-30/

Neuer Blog-Post: Ich habe mir mal – aus gegebenem Anlass – den derzeitigen TI-30 Taschenrechner angeschaut, den TI-30X Pro MathPrint. #texasinstruments #ti30 #ti30xpro #taschenrechner #calculator https://blog.metawops.de/taschenrechner/Der-TI-30/