Figure 20.
(A) Example of an arc with feedback control with entry point [x1(t1), x2(t1)] an exit point [x1(t2), x2(t2)] the exit point (B) Example of an arc that does not slides but reaches the boundary V = Vc at the contact point (x1(t*), x2(t*)).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.