"Nick Maclaren" wrote
What? When a butterfly flaps its wing in the Amazon forest..?

Be kind to him. Elementary numerical analysis[*] isn't obvious to
the uninitiated layman :-)

[*] What are now often referred to as chaotic systems were referred
to as numerically unstable ones when they were studied before about
1980. The problem is the same - the approach differs. I am no
expert, but anyone insane enough to ask for a more detailed
explanation is welcome to do so :-)


Quite a good description of "chaotic systems" for the layman on...
http://dept.physics.upenn.edu/course...tion3_2_5.html

--
Regards
Bob
In Runnymede, 17 miles West of London