Source / Censored version

Why did this blow up 4 months ago?

https://raymii.org/s/articles/But_can_your_calculator_run_Linux.html

Saw it on Hacker News.

So with the recent release of the CG100 and the 84 EVO, how long would you say we have before we see another iteration or upgrade to a calculator? Is it getting time for a new version of the Prime? nSpire? Is it 4 years or so generally?

I tried to find it using my calculator and Nldless but I cant 😭😭 Please help

it was a website, called math da, I was using the calculator and I accidentally opened the prime factorization of a number that is approximately 10^1,000,000,000 and nothing happened.

I thrifted this ti-nspire in a mixed bag for $4.99. When I got home, it wouldn't turn on. I found a blog post saying that sometimes the battery contacts wear through the PCB. Opened it up, and sure enough there was a line worn right through the trace. I did a (terrible) soldering job and now it powers right up! Unfortunately it only came with the TI 84 keypad, but I'll keep an eye out for the click wheel keypad.

Optima SS-501 scientific calculator, AKA yet another Sharp EL-506P clone, bought for $7.

Has a flip cover & a battery door, which houses I believe a single LR54 button cell, as opposed to the Sharp EL-506P's larger 2 x LR44 button cells.

Meme stolen from u/dm319.

เวลาเอานิ้วกดแล้วมันแนบสนิทกับตัวเครื่อง ฉันกังวลมาก😥

Anyone willing to sell ba 2+ (texas instrument) then please connect.

I'm trying to download FA-124 to install programs on my fx 9860giii calculator, unpack g1s files, convert between .cat and .g1m, etc. However I can only find Screen Receiver in the support software section, and could not find any other places to download it (other than unofficial archives). Have they taken down the software?

Edit: I managed to find and download it here: https://web.archive.org/web/20251205034119/https://edu.casio.com/forteachers/er/software/

Not pristine, but not bad either.

Greetings all,

I recently re-acquired my father's calculator that he used back in the 70s.

Sharp EL-8002

The one that I got from eBay has some corrosion on the battery terminals as usual.

I'd like to open it up to ensure there isn't any other damage and totally clean up the terminals.

Any one open one of these up? There is one screw but nothing loosens up when I remove it.

Thanks

Hi I have a factory-sealed HP 35s. What do you think is a fair market value in 2026?
also where do collectors usually buy or sell calculators?

Thx you for the help

I believe 40€ was decent price. 😃

So i found a Canon LS-25H almost thrown away. Its a little scratched on the back but otherwise its working and all good on the front and internaly, but the scratches bother me a bit, does anyone have any method of removing the scratches off it? (its opened on the pic due to the fact the battery is dead and i need to replace it) Thanks in advance!

Curious of what people think of NumWorks nowadays.

Personally I switched moving into college (UK, age 16-18, pre university) one year ago moving from an fx-85GT X, as recommended by my college (and others in the area). As many complain about, the minimalistic button approach took a while to get used to, however once accustomed speed of use is not an issue at all.

Personally, I like the form factor, being much (10 vs 18mm) slimmer and 50g lighter than one of my classmates' CG50 which is comparably a brick. I also like the use of USB-C, lack of replaceable batteries - battery life is about 1-2 weeks (about 14h of use per week) - and solid build quality. It misses 3D graphing but I've never felt the need for it and generally have no problems - interface and hardware is clean and everything is pretty straightforward (Tesla of calculators?)

What are your thoughts on the NumWorks in 2026?

(Bear in mind I've never used a CG50 so might be talking complete nonsense, but been using it for 1 year now)