Pi Day (March 14) is a day of global mathematical celebration, but it’s not the only numerically significant calendar date.

For Mr. Santos, math can also inspire ideas about structures that have already been built — a new way to see and appreciate ...

For centuries, students have learned that in a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides. Known as the Pythagorean Theorem, this ...

Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme. But the particular string of numbers in today's date may be especially ...

September 16, 2025, is the only date that fits the definition this century. Here’s the specific math to add it all up: 3 multiplied by itself is 9, 4 squared is 16, and 5 squared is 2025. On top of ...

The latest occurred when I was checking on a hospitalized patient and her mother pulled out her phone. “Doctor, I saw the ...

Once a century, a very special day comes along. That day is today — 9/16/25. Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme.

The president of the Palestinian Authority addressed the U.N. General Assembly by video after the U.S. denied him a visa.