Rodents & other pests will never get used to the ultrasonic sound waves emitted from this repeller. The Attack Wave effectively protects an area up to 4,000 - 5,000 unobstructed square feet. In a home with rooms, hallways, and furniture the effective range is closer to 2000 square feet.
Definition. of the Centroid of a Triangle. The Centroid is a point of concurrency of the triangle. It is the point where all 3 medians intersect and is often described as the triangle's center of gravity or as the barycent.1  It is formed by the intersection of the medians.he Centroid is a point of concurrency of the triangle. It is the point where all 3 medians intersect and is often described as the triangle's center of gravity or as the barycent. 1  It is formed by the intersection of the medians.
As far as I know, the mean of a cluster and the centroid of a single cluster are the same thing, though the term centroid might be a little more precise than mean when dealing with multivariate data. To find the centroid, one computes the (arithmetic) mean of the points' positions separately for each dimension.