
Mathematicians find one pi formula to rule them all
A mixture of AI and algorithms uncovered a hidden structure spanning 2,000 years of equations for pi
The number pi emerges from one of the simplest, most symmetric shapes, yet it gives rise to endless complexity. This Pi Day, find out about some of the fascinating places pi pops up and the burning questions that this mathematical mascot inspires. Have your pie and learn about it, too!

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Mathematicians find one pi formula to rule them all
A mixture of AI and algorithms uncovered a hidden structure spanning 2,000 years of equations for pi

How to find pi in randomness all around you
Random coin flips, floppy needles and mathematical mysteries reveal pi in new ways

Which Pie Gives You the Biggest Sugar Rush: Pecan, Apple or Pumpkin?
Scientific American asked experts which type of Thanksgiving pie spikes blood sugar the most—and how to eat healthier while still enjoying the holidays

How an Error in Cult Classic Game Doom Sparked New Appreciation for Pi
What would the world look like if we changed the value of pi? Whether in the real world or a game environment, the answer is complex

Math Enthusiasts Unite to Have Rover Calculate Pi on the Moon
Later this year a tiny rover will carry out an unusual lunar task

Indiana’s House of Representatives Once Voted Unanimously to Change the Value of Pi
How an incorrect value of pi almost got codified into law

String Theorists Accidentally Find a New Formula for Pi
Two physicists have come across infinitely many novel equations for pi while trying to develop a unifying theory of the fundamental forces

Do the Digits of Pi Actually Contain All of Shakespeare?
If pi is a “normal” number, the constant would contain much more than Shakespeare, resolving why such a random-looking number lives at the heart of simple circles

A Wild Claim about the Powers of Pi Creates a Transcendental Mystery
Mathematicians cannot determine whether multiplying pi by itself repeatedly might produce a whole number

If the mathematical constant pi was a song, what would it sound like?
Every year on Pi Day, we have a reason to celebrate one of math’s most famous symbols. But this year we speak to someone who has captured it in song.

The Long Search for the Value of Pi
The mathematical odyssey, plus a guide to calculating pi for yourself

What Is Pi, and How Did It Originate?
Pi has been used by mathematicians for centuries