Editor’s note: Also see Ken Coffman’s blog: The HP15C returns as an iPhone app. With the emergence of hand-sized computers, calculators have lost some of their former prominence, yet they continue to ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is an engineering prototype for ...

Here is a useful and free Website that just came to my attention: Calculator Edge. It uses a fill-in-the-blanks, push-a-button approach to solving problems in a wide range of engineering disciplines: ...

In electrical systems, impedance mismatches cause some of the transmitted energy to be reflected back to its source. The frequency of the signal determines the amount of energy that is reflected.

Back-to-school season isn’t just about notebooks and backpacks. For students heading into algebra, calculus, engineering, accounting, or college-level math courses, the right calculator can make a ...