Then there was root-mean-square (RMS) voltage. For those nice sine waves, you took the peak voltage and divided by the square root of two, 1.414 or so. You know that kid in the front of the class?

For example, the geometric mean calculation can be easily understood with simple numbers, such as 2 and 8. If you multiply 2 and 8, then take the square root (the ½ power since there are only ...

Real-time digital systems often require the calculation of a root-mean, such as a root-mean square (RMS) level or average magnitude of a complex signal. While averaging can be efficiently implemented ...

The r.m.s. value of an a.c. signal is equal to the value of direct current (d.c.) which would have the same effect or energy change as the a.c. The r.m.s. voltage of an a.c. signal is always less ...

Some quadratics cannot be factorised. An alternative method to solve a quadratic equation is to complete the square. To solve an equation of the form \(x^2 + bx + c = 0\) consider the expression ...

We’ve added the Empire e250 12” True Blue Combination Square and the Empire 220 Polycast Combination Square to the competition section. If you’re planning on doing any carpentry ...

Allen Root is an associate editor at Barron’s. He spent 17 years on Wall Street and joined Barron's from broker R.W Baird, where he was the industrial strategist. Allen Root is an associate ...

Commissions do not affect our editors' opinions or evaluations. Square is one of the best-known credit card processing companies on the market today thanks in part to the Square card reader that ...

On October 3rd, we celebrate Mean Girls. Whether you know every scene by heart or can pinpoint the origin of “We wear pink on ...

So, you’re choosing the bear, right? A new question sweeping social media is being met with nearly complete unanimity among women, and confusion or anger by men. And while this may seem silly ...

Dear Miss Manners: About two years ago, I completely and successfully left all social media behind. I also limited my texting to essential information. It has been largely a wonderful change in my ...

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