|   |   | 
| Sunday 21st December 2008 
 A tetraview is an attempt to graph a complex function of a complex variable, by a method invented by Davide P. Cervone
 
 |        |  | Today we did go over to A******'s great-grandparents in Ambleside. Oh look, I've got a bit of a beard there. That's since gone. I can never work out whether I like it or not - the beard. | 
 
 | 
|  |