Just before the days where every high school student had a cell phone, everyone in class had a TI graphing calculator. In some ways this was better than a cell phone: If you wanted to play ...

Learn more about how we select deals. TL;DR: The forever-useful Texas Instruments TI-84 Plus graphing calculator is on sale for $88 at Walmart, saving you $28. Since the dawn of time (okay ...

He’s running Android Donut on a TI nSpire CX graphing calculator. Unlike just about every other TI calculator, homebrew developers are locked out of the nSpire CX and CX CAS. Without the ability ...