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.
(columns, left to right) and degree 
(rows, bottom to top).
Shown are negative real (blue), positive real (red), negative imaginary (green), and positive imaginary (yellow) parts of 
.
