You’ve used SUM for years. It adds numbers, does its job, and you probably don’t think twice about it. But while you’ve been clicking through filters and building messy helper columns, Excel has been ...

When writing formulas in Excel, SUM and VLOOKUP are staples for beginners. But since Excel has over 400 functions, it's helpful to know more of the extremely useful ones, especially when looking to ...

Over time you may have noticed that your iPhone's battery just doesn't last the way it did when it was fresh out of the box. Over time phone batteries naturally degrade, becoming unable to hold a ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

The parent company of Optus has for the fourth successive year managed to record $8 billion in income without paying company tax. Left-wing types sneer at those who used to take holidays at the theme ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Michael Boyle is an experienced financial professional with more than 10 years working with ...

ABSTRACT: Indian diets are protein deficient. Our population is physiologically predisposed to lower muscle mass. There are many protein-rich oral nutrition supplements (P-ONSs) available to support ...

ABSTRACT: Let n≥10 be an even integer. It is proved that there exists a prime number p and a composite number c such that n=p+c . The proof is constructed using elementary number theory, incorporating ...