I was just becoming a teenager back around 1976 when my father bought a TI-30 calculator for $25, or around $107 in 2017 dollars. The mining company at which he worked as an electrician had made ...
You can leave the TI graphing calculator at home thanks to this web-based TI-83 and TI-84 emulator. As with pretty much all emulators, this depends on a ROM image from the actual hardware to work.