In the course of the 1970s, handheld electronic calculators transformed the way tens of millions of people did arithmetic. Engineers abandoned slide rules, business people gave up desktop calculating ...

[Pierre Parent] and [Ael Gain] have certainly taken these values to heart with their open handheld graphing calculator. While the duo isn’t giving away the calculators themselves, they are ...

I built a handheld calculator to keep me off my phone in the gym, so I could just type in the weight I wanted and know what I needed to load on the bar. To do this, I designed a PCB, wrote firmware ...

Calculator apps and handheld calculators are clunky, but Python's interactive mode easily recalls previous results for calculations. You can also scroll through and search input. Python offers ...

This page is dedicated to my favorite handheld calculator, the TI-30Xa. I made it to serve several purposes: To practice my test-driven development. A suite of tests have already run by the time your ...

They wanted a flashy product to showcase the IC. A calculator seemed just the thing. In a mere two years, a TI group including Jerry Merryman and James Van Tassel, and led by Jack Kilbydeveloped a ...

If you like Nixie tubes and/or DIY calculators, checkout this interesting talk from the HP Handheld Conference in Orlando last month by [Eric Smith] from Brouhaha and [John Doran] from Time ...