center of gravity

Drag the verticles A, B and/or C of the triangle. The barycentric coordinates of the center of gravity sremain the same. In the normalised form we write P= (1/3, 1/3,1,3). The sum of the coordinate numbers is 1. In the not-normalised form we write P: (1 : 1 : 1). Here we don't divide by 3.