Figure 3. Basic concept of a cut (green) of intercolumn arcs between two rays for a delta value of one (Δr = 1).
Left and middle: same cost for a cut (2•∞). Right: higher cost for a cut (4•∞).
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.