Dot Pattern 2

Dot Pattern 2[br]see video at http://youtu.be/pLpd36tGkqM
Dot Pattern 2
see also[br]http://www.geogebratube.org/material/show/id/56939[br]and[br]http://www.geogebratube.org/material/show/id/56942

Information: Dot Pattern 2