Enter in the number of digits of Pi you would like the program to calculate. The time it takes to calculate digits rises quadratically. For my computer: 100 digits 0.03 sec 500 digits 0.7 sec 1,000 digits 2.8 sec 5,000 digits 1 min 10 sec 10,000 digits 4 min 40 sec 100,000 digits 7:46.40 1,000,000 digits 32 days 9:46.40 1,000,000,000 digits 88726 yrs 245 days 21:46.40
Uses the spigot algorithm: http://www.pi314.net/eng/goutte.php The famous 999999 can be found by setting the calculator to 1000 digits and looking at row 16.
