REPLY First order oscillation (SD6464)

[SDMAIL Douglas Franco]

Posted by  "Douglas Franco" <dfranco at cantv.net>

The continuous model of the discrete formulation

output(t) = intput(t-L), where L is the length of the delay

does need infinite levels. Therefore, this continuous model can oscillate, 
as John pointed out.

But it is a model.

Sometimes, there is more in our models than it is in the real world.

Sometimes, there is more in real world than there is in our models.

Douglas Franco
Posted by  "Douglas Franco" <dfranco at cantv.net>
posting date  Sat, 2 Jun 2007 08:51:14 -0400