[math-fun] computation of Pi in hexa decimal

Hello,  a certain Takahashi has computed Pi at the 10^17'th position in hexadecimal or 4*10^17 in binary using a cluster of pc's.  It took 320 hours.  You can send a request to the author to get a copy of the article, he sent me one. Also, I asked him if Elsevier is giving him any money for the 40 dollars they ask for 10 pages of text : No, het gets nothing. well, here is the article : http://plouffe.fr/simon/1-s2.0-S0167819118300334-main.pdf  The hell with Elsevier, qu'ils pourrissent en enfer.  This is a shame, Mr Takahashi is a respectable researcher using public money and taxes to write articles and the public gets nothing for that, mr Odlyzko was right, it does not get better over time.  Best regards,  Simon Plouffe