| Probability density function | |
| DF | Density function |
| MSD | Mean squared displacement |
| w.r.t. | with respect to |
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.