calculators

11.24.09

Tested: HP 15C Classic Calculator Reborn on the iPhone

By John Brandon Posted 06.25.2009 at 5:38 pm 2 Comments

HP 15C Calculator Emulator for iPhone: HP

In the ongoing quest to turn real-world objects into iPhone applications, HP has released a calculator app that is a near perfect imitation of the original HP15C. Released in 1985, this full-function scientific calculator had a root-solver, could handle matrix operations, and supported numerical integration. It also lasted about six months on one battery-–or about five months and 29 days longer than the iPhone. But save for that sacrifice to modernization, the HP15C on the iPhone is pretty slick.

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READ MORE ABOUT > apple, calculators, cellphones, Hewlett Packard, hp 15c, iphone, iphone apps, mobile apps

Tech in Training: I Am a Machine

A chosen training scheme, built for engineers

By Mike Haney Posted 06.18.2009 at 4:25 pm 0 Comments

Editor Mike Haney is training for the New York City Marathon with all the help from high-end running tech he can get. Read his previous posts here

I've prepared for my past four marathons with roughly the same plan: Run as little as possible. Now I'm old and out of shape, so to stand a chance at beating my last NYC Marathon time (3:27:45), I need a training scheme that seriously puts me to work. But I don't want to just mindlessly pound out miles -- if I'm donning the Dri-Fit, I better know why.

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READ MORE ABOUT > athletics, calculators, marathons, running, sports, tech in training, training