Scientific calculators are an amazing invention that take pocket calculators from being merely basic arithmetic machines to ...

When a treasure of retrotechnology fails to work, the natural next step is to have a go at repairing it. [Adam Wilson] found himself in this position when he acquired a 1974 Sinclair Cambridge ...

I used to think this, but the sci calc app on my phone: it's called Real Calc, has won me over. It's really good, and the cost is tiny. Have it on my phone and my N7. This TI is the last TI calculator ...