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

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, ...

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Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Amy is an ACA and the CEO and founder of OnPoint ...

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 ...

Cleanse every night to remove makeup, sunscreen, dirt, oil, and bacteria from pores. Micellar water or gentle double cleansing can help without stripping skin. Use a stand-alone sunscreen daily with ...

Fast and Thinking both use Gemini 3 Flash, while Pro uses Gemini 3.1 Pro. Gemini 3 Flash is fine for quick and easy requests and chats, but it’s not as effective as Gemini 3.1 Pro when it comes to ...