It's still a great calculator, but I'm not about to let a student borrow it. Not because I'm mean, but because older scientific calculators use RPN and I doubt many students know RPN. Now ...

It looks iPhone has been hiding a big feature all-along ... use a third-party calculator app on your iPhone to access a scientific calculator, then we have good news for you.

The work [Ken Shirriff] put into reverse engineering the Sinclair Scientific is just amazing ... you’re doing and read it right now! This calculator shoe-horned itself into the market when ...