Q. I get a detailed revenue transaction export from the client, and then I get it again, revised, usually after I’ve already filtered, sorted, and documented my selections. I’m tired of reapplying ...

Celebrate Pi Day and read about how this number pops up across math and science on our special Pi Day page. For more than two millennia, mathematicians have produced a growing heap of pi equations in ...

Some popular baby formula brands contain heavy metals, including arsenic, lead and PFAS, or "forever" chemicals, according to a new report from Consumer Reports. The nonprofit consumer advocacy ...

As one of the most heavily regulated foods on the market, infant formula is subject to strict nutrition guidelines and undergoes rigorous safety and quality testing. But CR’s tests of infant formula ...

Infant formula is, rightly, one of the most strictly regulated foods on the market. Formula is an essential source of nutrition for millions of infants, and it’s absolutely crucial that the formula we ...

The introduction of dynamic arrays triggered the biggest change to how we work with Microsoft Excel formulas in years, if not decades. They allow a single formula to spill multiple results into ...

Are you invested too much in stocks or not enough? There is a new way to answer that question. Yale University finance professor James Choi recently developed a formula that recommends an asset ...

Imagine opening an Excel file expecting to see numbers, only to find that every cell displays formulas like =SUM(A1:A10), instead of the actual results. It can be confusing and frustrating, especially ...

WHITE OF ONLINE IMPERSONATION. WHEN YOU FEED YOUR NEWBORN, YOU EXPECT THE FORMULA YOU GIVE THEM IS SAFE, OF COURSE, BUT THE STATE SAYS MORE THAN A DOZEN DIFFERENT FORMULAS CONTAIN HEAVY METAL. WESH ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...