Reading TVR is King's thread, his signature inspired me to make a thread about pi. Why not?

Currently, I think the maximum number of digits pi has been calculated to is 1.24 trillion. Why? Well I don't know why! There is no perfect circle in nature, and we will never need to make something so perfect as to need 1.24 trillion digits. It is however a good measure of current computing power.

Me, I remeber 3.14, or the button on my calculator.

The record for reciting pi is 83,431 digits by a 59-year-old Japanese psychiatric counselor. it took 13 hours.

And for a bit of fun, solve this

Move 1 match stike to approximate the equation.