As we reported a year or so ago, there is a small industry of people interested in computing the digits of . Back then they computed the first 5 trillion digits of and destroyed the old record of 2.7 trillion digits.

It was announced on slashdot recently that a person in Japan has extended the computation to 10 trillion digits! The website is here. At the moment there isn’t many details, but this person has been involved in the calculation community for awhile, so there is every reason to expect that this is legit.

Of course, as pointed out by one of the slashdot commentators, if you take the first 50 digits of :

then that is already enough so that if you compute the circumference of the known universe using just these 50 digits, then your error is less than the width of a human hair!

That said, the associated improvements in algorithms, computation, etc. may be useful in other settings. Plus, it’s just darn cool.