资讯

Forget Pi Day. Today is Pythagorean Triple Square Day.

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

On 9/16/25, celebrate a date of mathematical beauty

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.