A Mathematician with early access to XAI Grok 4.20, found a new Bellman function for one of the problems he had been working ...

Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

IWL targets the 200 largest Russell 3000 names, delivering a 0.41% CAGR edge, solid risk-adjusted returns and growth-quality ...

Financing is an important yet overlooked element of Russian sabotage in Europe: it can act as both a facilitator and a tool ...

One of the interesting conundrums that comes with adapting a superhero for video games is the way the developers have to weigh the balance between authenticity to the source material and the necessity ...

The president’s team has created a highly unusual fund-raising apparatus for causes he favors. The Times analyzed more than half a billion dollars in contributions from 346 donors. Some have received ...

Part of Pine Island Glacier collapsed several years ago, forming an unstable inlet where no ship had sailed. Until now. By Raymond Zhong Construction can continue on an $11.2 billion project off the ...

Memory is the faculty by which the brain encodes, stores, and retrieves information. It is a record of experience that guides future action. Memory encompasses the facts and experiential details that ...

Body language is a silent orchestra, as people constantly give clues to what they’re thinking and feeling. Non-verbal messages including body movements, facial expressions, vocal tone and volume, and ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Ebony Howard is a certified public accountant and a QuickBooks ProAdvisor tax expert. She has been in the ...

If you could save lives by producing vaccines in transgenic bananas, would you? In the debate over large-scale commercialization and use of GMOs, where should we draw the line? Vaccines Tobacco ...