I got a V200, the successor of ti92. Best device ever, so much power in that brick. I never found something equivalent on computer, except maybe wolfram alpha.

I’m just sad I never had to really use it in my work. Only time it could have been useful, it was dead 😥.

The fact that you can and should enter a sequence of buttons to get a QR code to verify if your casio is in fact a casio is wild

I used an HP RPM calculator through college. It could do cool stuff like graphing and solving equations. Very helpful for an engineering student, not so helpful later in life. I used that calculator until about a year ago when it died (got about 35 years from it). I didn’t use the super fancy stuff anymore, but for a scientific calculator it was pretty solid.

So when it broke, I had to find a replacement for a device that I’ve used for my entire life. Needless to say, I was kind of picky. I tried emulators, and newer TIs, and there’s a bunch of knockoff crap like the article points to. Only one made me happy. A silly little iOS app “PCalc” (it has an icon of “42”). It was like $5, runs on my phone, and honestly I probably should have switched decades ago.

I’m not associated with that app or the author or anything, just a recommendation for anyone old and stubborn like me - I know I’m not alone here with calculator attachment issues :)

I have a 991es but I only got it in uni because it was the only one allowed. Before that I had a TI 30X IIS. Loved that Casio. The new one looks like a pain in the ass to use.