It’s not Apple IIs, and it’s not Raspberry Pis. The most important computing platform for teaching kids programming is the Texas Instruments graphing calculator. These things have been around in one ...

Ask any professor, and they’ll probably tell you graphing calculators offer a plethora of mathematical uses, like plotting graphs, inputting trigonometric functions — you know, typical academic stuff.

I've been looking online and seem to be unable to find a free option that seems functional enough and trustworthy. Microsoft apparently has a free "powertoy calculator" but it only works for xp, ...