Shoppers love the "functionality and aesthetics." TheStreet aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. The Casio Data ...

Back to school is officially here! If you’ve found yourself needing a brand new graphing calculator to keep up in math classes, then you’re in luck. Right now, you can save big on Texas Instruments ...

A behind-the-scenes look at how the original handheld digital calculator was created by Jack Kilby’s team of engineers at TI, as told by the grandson of LED inventor James R. Biard. In 1966, there ...

Empire of the Sum: The Rise and Reign of the Pocket Calculator. By Keith Houston. W.W. Norton & Company; 384 pages; $32.50. To be published in Britain in October; £25 WHEN WAS the last time you used a ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Do simple calculations with your own math box. Ralph Smith The next ...