πe trillion digits of π

Celebrating π-Day

The pi record computation of DECTRIS has survived more than 4 months from November 2016 until 3/14/17, which is Albert Einstein’s…

Download One Trillion Digits of Pi

As announced in November 2016, I’ve computed π up to 22.4 trillion digits. The first trillion decimal digits of this computation…

Summing Up

Last week I had the opportunity to present the venture of calculating π with a world record accuracy to my colleagues…

Hitting the Target

This morning, the world record computation of pi finally completed. Thereby the 105 days long calculation comes to a successful…

Hexadecimal Digits are Correct

This week I’m attending a conference in Strasbourg. While following the opening plenary, I log in to the server, on…

Is π Normal?

The normality of pi is one of the remaining mysteries of the mathematical constant π. To understand the concept better,…

Disk is Full

Some days ago, I suddenly found the following error message on my screen: At first, I simply restarted the computation…

3:14 Illuminated with D.E. Knuth

Scientists nowadays rarely write about things outside their narrow fields of expertise, and it’s especially unfashionable for a scientist to…

60% Milestone Passed

35 days after starting the computation, 60% of the series has already been summed. Against my expectations, all 20 discs…

The Chudnovsky Formula

The formula used by y-cruncher to compute π is called after the Chudnovsky brothers, two mathematicians living in the United…

3, 2, 1, Go!

Yesterday afternoon two colleagues kindly helped me to mount the π-Storage in a rack in our server room and to…

The π-Protein

Inspired by a web page with random walks based on π, I implemented this idea with the 3D engine Babylon.js….

The π-Storage

Today we received the 24 hard drives and the housing for our π-storage. We decided to use Enterprise NAS HDDs…

God Loves the Odd Number

In the late 17th century, Gottfried Wilhelm Leibniz discovered a beautiful series expansion of π/4 which only involves odd numbers….

About me

My name is Peter and I’m living in Switzerland. I’m a Christian and particle physicist by education. If you’ve already…

© 2017 - 22.4 trillion digits of pi.