Pi record smashed as team finds two-quadrillionth digitThe formula turns an infinite sum into a more manageable calculation of single terms A researcher has calculated the 2,000,000,000,000,000th digit of the mathematical constant pi - and a few digits either side of it. Nicholas Sze, of tech firm Yahoo, said that when pi is expressed in binary, the two quadrillionth "bit" is 0. Mr Sze used Yahoo's Hadoop cloud computing technology to more than double
