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Replace legacy formulas with MAP, BYROW, BYCOL, SCAN, and REDUCE to build secure, scalable, and automated spreadsheets.

Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. CAGR measures an investment's average annual growth ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Samantha (Sam) Silberstein, CFP®, CSLP®, EA, ...

If Excel is not using threads efficiently, calculations may take a long time to complete. Learn how to speed up calculating threads in Excel.

Learn how Vehicle‑to‑Home V2H charging and V2H bidirectional charging let drivers use an EV as home UPS for reliable EV battery home backup in 2026. Pixabay, AKrebs60 Vehicle‑to‑Home V2H charging is ...

The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some ...

Index funds track major financial indexes, enabling broad market investment without picking individual stocks. Investing in index funds involves choosing an index, selecting a low-cost fund, and ...

Alexa Plus has introduced AI-powered features that go beyond basic tasks like timers and music. Even if you prefer standard commands, the assistant has many capabilities on Echo speakers and phones ...

Although Xenoblade Chronicles X uses an “auto-attack” system in battles, the game’s combat is more complex than it looks. From TP to Arts, there are many mechanics you will need to learn if you want ...

Lactic acid is an over-the-counter chemical exfoliant that comes from the fermentation of lactose — a carbohydrate found in milk. It's a popular ingredient in numerous skin care products nowadays. But ...