This is a calculator where depending on a number and Leibniz's Formula, we can calculate digits of Pi. The higher the number you put in, the closer you get to Pi, but the more your computer wants to blow up.
Lets say you were running iterations 30 times a second, it would take this long to find these digits of Pi: 1 Digit: 0.67 seconds 2 Digits: 6.7 seconds 5 Digits: 1.9 hours 10 Digits: 21 years 25 Digits: 2.1x10^16 years 100 Digits: 2.1x10^91 years To calculate 100 digits, it would take 10^81 times longer than the current age of the universe, you aint ever calculating that, just look it up.