CEmu VS citra

I would need a few more zeros to motivate me to do this, but one viable approach I'll throw out there is use CEmu to validate equations. From the math side, you can start with the real equation, transform, approximate, and invert approach. For instance, for certain types of simple line drawings you can turn them into equations by: (on a real computer)

There are various cross-platform ways, I'm surprised you haven't found them (although ticalc.org probably doesn't have updated info so I guess that could explain it): TiLP (see my fork herefor Mac binaries directly) has a rom-dumping feature which produces a *full rom dump, and CEmu's dumper (which dumps less things but enough to emulate the calc, on which you can transfer missing things if needed, like apps). Since you're I retested in emulation you might want to go with CEmu (take the nightly build not the release) and follow the steps.

Unless taking screenshot via TI-Connect CE counts, you can't on a physical calculator. If you use an emulator like CEmu then it's really easy: https://github.com/CE-Programming/CEmu

The main branch of CEmu does not bring over any user data. There's a USB branch which will let you send apps and programs as if there were a USB port connected to it. You'll have to build it yourself but I'm pretty sure it's this branch: https://github.com/CE-Programming/CEmu/tree/feature/libusb

I would recommend the fx-9750giii. It's affordable. It's very interesting. And honestly, if you can find the roms for TI calculators, you can use CEmu to emulate the TI-84 CE.

For cemu the command seems to be -g , --settings Or maybe it's either. Not at my pc to test. More info here https://github.com/CE-Programming/CEmu/wiki/Command-Line-Arguments

Doesn't cover 3DS (Citra)

Another wonderful option is to play Nintendo 3DS games with the Citra emulator. They look incredible. I would go so far as to say that if you're a fan of the console then this is the best way to experience its games, even better than on the original hardware. Again use 3840x1200 @ 60 Hz and full SBS. In Emulation -> Configure... -> Graphics -> Stereoscopy set it to "Side by Side". Also increase the renderer internal resolution to as high as your PC can handle (I used "5x Native"). We'll also have to set the display layout for our resolution and aspect ratio. Unfortunately, this has to be done manually. Browse to %APPDATA%\Citra\config and edit qt-config.ini with this in the [display] section:

After some more research, I discovered that the Citra devs discovered and fixed this issue by allowing the Back button to open the in-emulation menu. This fix was added on Jan 22 2023. When I checked the version of Citra available on the Google Play Store on my phone, it was a very old version from May 2021, which is strange because viewing the same Play Store page on my computer shows it was updated in April 2023... maybe your Play Store version is also outdated? If so, the only solution I can think of would be to install the apk from the Citra Nightly github repo.

https://citra-emu.org/ A 3ds emulator!

You might want to consider compiling it on your Mac yourself, rather than trying to download a build, given the situation with MacOS transitioning to ARM. Beyond that, your question is related ton emulation, not ROMs specifically, so if you still need help, ask on related subreddits like r/EmulationOnMacOS and r/CitraEmulator.

https://citra-emu.org/ just typing the console + emulator on any search engine should give u the best option most of the time

I used the one here (you need a github account): https://github.com/citra-emu/citra/actions/runs/5078058438

There have been several recent changes merged for custom textures. Here is one of the pull requests for example: https://github.com/citra-emu/citra/pull/6452. The slow loading you're talking about was only an issue for me if preload custom textures was enabled.