Excel gives the answer 10. If you have a mathematical background, you’ll know why Excel gives a different answer to such a simple calculation — and why, technically, Excel is right. If you don’t have ...

Writing complex formulas might seem intimidating, but with the right approach, it becomes second nature. Mastering complex formulas requires planning, using the right tools, and leveraging smart ...

Over the past six months, we’ve learned how AI can be used for many tasks: creating art, powering a sophisticated chatbot, and so on. But what if you could use it to actually assist you in your job?

Re “The Lobotomized Weasel School of Writing,” Commentary, May 20: I vehemently disagree with Crispin Sartwell’s characterization of the five-paragraph essay as “hoo-ha.” While he explains that ...