The Sinclair Scientific wasn’t the first pocket scientific calculator, nor was it the best of its era. But the story of its development using a chip never intended for the job is a fascinating ...

The slide rule sword gave way to calculators hanging from your belt loop, and for many engineers that calculator was from HP. Today’s students are more likely to have a TI or Casio calculator ...

HiEdu Scientific Calculator is a surprisingly ... RealCalc is a mainstay in this space and one of the best overall calculator apps. It’s not much to look at, but it includes a ton of functionality.