A switching dc-dc converter converts an input voltage to an output of a different magnitude and/or polarity with high efficiency. Typically, such a converter A switching dc-dc converter converts an ...

This study is an attempt to analyze students' construction of function based problem solving methods in introductory algebra. It claims that for functions to be a main concept for learning school ...

The MOD function in Microsoft Excel lets you work out whether one number is divisible by another. If it's not, it tells you what's left over. For example, if you divide 3 by 2, the MOD function will ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. LITTLE ROCK, Ark. – An Arkansas high ...

A seemingly simple math problem has gone viral this week, leaving people totally stumped on social media. The equation in questions is: 15 - 15 × 4 ÷ 2 = ? At first glance, it looks like a basic grade ...

This paper presents techniques to solve for optimal simple monetary policy rules in rational expectations models, assuming discretion. The techniques described are notable for the flexibility they ...

Forbes contributors publish independent expert analyses and insights. Mark Cohen covers the global legal industry and business reinvention. This article is more than 3 years old. CHARLOTTE, NC - ...