Adrien Bertrand

Try deleting and/or archiving unneeded variables, then press and hold the reset button on the back of your calculator for 3-4s (with USB not plugged). Then turn the calc back...

The physical reset button on the back only affects RAM

Ehh actually no, USB is quite well understood by a few people like @Mateoconlechuga and @jacobly0 and jacobly got audio working quite nicely some time ago :D but it's not...

USB audio is being implemented (earlier than linking anyway)

You could look at all the USB stuff in here: https://github.com/CE-Programming/CEmu/tree/usb-host and here: https://github.com/CE-Programming/toolchain/tree/usbdrvce and see if you can find out anything else - but it's not an easy task...

Archive all your programs then do a RAM reset and try again, it should work.

Compiling with LLVM does greatly improve the speed, I did benchmarks a few months ago :)

Maybe someone can try this version built with the latest LLVM-based toolchain: [PCAS_llvm_build_new.zip](https://github.com/nathanfarlow/PineappleCAS/files/7004232/PCAS_llvm_build_new.zip) (or if it doesn't work, maybe [this slightly older version](https://github.com/nathanfarlow/PineappleCAS/files/7004142/PCAS_llvm_build.zip)) Make sure to use the latest libs:...

OK thanks. Yeah might be some leftovers in memory, but that should be completely harmless. You can clear after that.

Extremely hard. Differentiation is easy, integration is completely different and way harder in general, requiring a lot more algorithms. See Risch, for instance. In 3 words: not gonna happen :p