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.
Sign indicates whether feedback input arrives before (negative value) or after (positive values) the feedforward input. For each time delay one iteration step should be added.
