Whether you're interviewing for an Excel-related job or teaching a beginner, using the right terminology is crucial. Above all else, knowing the difference between a range and an array is the key to ...

===== Benchmarks for 3×3 Float64 matrices ===== Matrix multiplication -> 5.9x speedup Matrix multiplication (mutating) -> 1.8x speedup Matrix addition -> 33.1x ...

Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with confidence.

Use this property for licensing configuration from version 8 and up. This property must be set before the ExcelPackage class is instantiated, if not a LicenseNotSetException will be thrown. Note that ...

Chris Davis is a Managing Editor on the Investing team. As a writer, he covered the stock market, investing strategies and investment accounts, and as a spokesperson, he appeared on NBC Bay Area and ...

Arielle O’Shea leads the investing and taxes team at NerdWallet. She has covered personal finance and investing for nearly 20 years, and was a senior writer and spokesperson at NerdWallet before ...

Alyssa Morin is a senior editor at InStyle, where she covers fashion and beauty. She reports on fashion trends, finds the best shopping deals, and reviews makeup, skin care, and hair care products. So ...

Inkjet or laser? Need just printing, or have to scan and copy, too? Seeking low-cost ink, or a low-cost printer? Here's how to choose the right printer for home or work, backed by our top lab-tested ...