These links give phase portraits for the first 30 zeros of the Riemann xi function, numbered from the zero on the critical line with the smallest y coordinate, in encapsulated PostScript format. You will need a reader, such as Ghostview, to see them or print them out.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,

*Last modified: 6th March, 2003.*