• Explore Pi (π): https://81018.com/continuity-symmetry-harmony/
• Getting beyond our high school understanding: https://81018.com/starts-2
• Pi Day and UNESCO’s International Day of Mathematics
• Pi Day 2018 Homepage, Pi Day 2019 Homepage, Pi Day, March 14, 2021, Pi Day 2025
• Pi (π) Shapes Our Universe and our ”Pi working page”
• Let’s start at the very beginning when our universe began filling with infinitesimal spheres
• Sphere: Our most basic building block

Pi is:

Begins with one, then sphere-stacking

Online running account
Emma Haruka Iwao ran her computers from September 22, 2018 to January 21, 2019 to emerge with 31.415 trillion units. She then continued and it went over 100-trillion digits. In 2024 a running history of the record confirmed it was again broken with over 200 trillion digits.
In 2016 Peter Trueb, after 105 days of non-stop calculations emerged with 22,459,157,718,361 fully verified digits of pi. That is over 22 trillion digits!
Newton calculated 17 and 17 digits is enough for most applications.

More facts (not guesses):

Pi ( $π$ ) is the exact ratio of the circumference of a circle to its diameter.
Pi is a constant.
Pi is an irrational number.
Pi is a transcendental number.*
Pi is a non-repeating number – no pattern has been identified using computer analysis within over twelve trillion places.
Pi is a never-ending number.
Pi within any equation makes the result irrational, never ending, with never-repeating patterns.
Pi is a dimensionless constant. It is a mathematical constant.
Also, see those pages about spheres…

Pi is the simplest, most commonly-used dimensionless constant.
Pi is the bridge between the finite and the infinite.
The sphere is the first manifestation of spacetime. Calculated to be 18.5 tredecillion spheres per second, these primordial spheres are defined by Planck Length and Planck Time (or their equivalents). These are logically the smallest physical units to define space-time.

This page was started in 2012.

for the graphics (above) that demonstrate the simple definition.

So, what do you make of it? What is going on? Our continued discussion…

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