Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Toby Walters is a financial writer, investor, and lifelong learner. He has a passion for ...

Discover a fast and powerful calculus-based method for finding square roots with impressive accuracy. This explanation shows how derivatives and iterative approximation can be used to quickly zero in ...

Years ago, no math education was complete without understanding how to compute a square root. Today, you are probably just reaching for a calculator, or if you are writing a program, you’ll probably ...

Draw four lines beginning and ending at the gray points to break this square into pieces that can be rearranged into five identical squares. Show puzzle solution Bonus: Suppose you can use any number ...

Trump administration says DOGE may have misused Social Security data What a break with Europe means for the American economy At 80, Dolly Parton remains our most unlikely national unifier Another ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician ...

Square Root Day — an event that occurs only nine times in a century — was celebrated with a variety of math activities this week at the St. Augustine Elementary School gym. Square Root Day is an ...

Today is Cinco de Mayo. And this year, the fifth of May is filled with mathematical joy. It is — Square Root Day! It all started in 1981. "I was writing a check in late August," says Ron Gordon, who ...

In the 36 years since its creation, Pi Day has become a widely celebrated holiday, one that is not just for math nerds or those with a sweet tooth. The holiday always falls on March 14, but retired ...