Learn when FILTER beats XLOOKUP, when it does not, and how to handle multiple matches, nth items, and multi-condition lookups with clear steps.

Have you ever followed a YouTube tutorial, carefully copied an Excel formula, and hit “Enter,” only to be met with an error or baffling results? It’s a ...

Abstract: The rate-distortion function (RDF) has long been an information-theoretic benchmark for data compression. As its natural extension, the indirect rate-distortion function (iRDF) corresponds ...

一提起查找函数，很多人第一反应都是Vlookup。 Vlookup虽好用，却也有 致命的弱点 ， 比如不能逆向查询，只能查找第一个等等。 天底下没有十全十美的事儿，函数也一样。 但好在， Excel里还有个Index函数，能通过 横纵坐标精确打靶 ，而且，它才不管位置是在 ...

Objective: Weight-adjusted waist index (WWI), a novel indicator of abdominal obesity that reflects body compositional changes due to aging, shows superiority in predicting obesity-related health risks ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Exploring the Benefits and Risks of Buffett's 90/10 Allocation Stella Osoba is the Senior Editor of trading and investing at Investopedia. She co-founded and chaired Women in Technical Analysis. She ...