Known Digits
The number of known digits of Catalan's constant G has increased dramatically during the last decades. This is due both to the increase of performance of computers as well as to algorithmic improvements.
| Date | Decimal digits | Computation performed by |
|---|---|---|
| 1832 | 16 | Thomas Clausen |
| 1858 | 19 | Carl Johan Danielsson Hill |
| 1864 | 14 | Eugène Charles Catalan |
| 1877 | 20 | James W. L. Glaisher |
| 1913 | 32 | James W. L. Glaisher |
| 1990 | 20,000 | Greg J. Fee |
| 1996 | 50,000 | Greg J. Fee |
| August 14, 1996 | 100,000 | Greg J. Fee & Simon Plouffe |
| September 29, 1996 | 300,000 | Thomas Papanikolaou |
| 1996 | 1,500,000 | Thomas Papanikolaou |
| 1997 | 3,379,957 | Patrick Demichel |
| January 4, 1998 | 12,500,000 | Xavier Gourdon |
| 2001 | 100,000,500 | Xavier Gourdon & Pascal Sebah |
| 2002 | 201,000,000 | Xavier Gourdon & Pascal Sebah |
| October 2006 | 5,000,000,000 | Shigeru Kondo & Steve Pagliarulo |
| August 2008 | 10,000,000,000 | Shigeru Kondo & Steve Pagliarulo |
| January 31, 2009 | 15,510,000,000 | Alexander J. Yee & Raymond Chan |
| April 16, 2009 | 31,026,000,000 | Alexander J. Yee & Raymond Chan |
Read more about this topic: Catalan's Constant