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 ...

An engineer worked in a concentration camp on the first pocket calculator. July 6, 2013— -- A Viennese engineer worked meticulously in a concentration camp on the world's first pocket calculator.

The device featured user-definable keys (with 35 keys controlling more than 80 operations) and was the first HP pocket calculator with base conversions (octal and decimal). The calculator cost $795 ...

An 'exceptionally rare' pocket-sized calculator from the 17th Century is expected to attract £100,000 at auction. The Arithmetical machine is one of the first mechanical calculating devices known ...

When is a pocket calculator more than just a calculator? [Andrew Menadue] has been pushing the limits of his 1970s Casio FX-502P by adding all sorts of modern functionality via the calculator’s ...

We’ve all got calculators on our phones, in our web browsers, and even in the home “assistant” that’s listening in on your conversations all day on the off chance you blurt out a math ...

Jerry Merryman, a self-taught electrical engineer who helped design the first pocket calculator, died on Feb. 27 in Dallas. He was 86. His wife, Phyllis (Lee) Merryman, said the cause was heart ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Your computer’s built-in calculator app is acting like an old ...

Who needs a pocket calculator when you've got one of the best calculator apps on your smartphone? After all, even an average phone can top the computational powers of a handheld calculator — and ...