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.
The rotation nomenclature is shown. Roll is a rotation about the superior–inferior axis, yaw is a rotation about the anterior–posterior axis, and pitch is a rotation about the right–left axis. Each rotation shown is in the positive direction.
