If three points A, B and C are collinear, they define a single plane, and each point M of this plane is given by the formula M = xA + yB + zC, where x + y + z = 1. The numbers x, y, z are called the barycentric coordinates of the point M.

The last command  convert(M,list)  provides the list of coordinates of the point M. Copy my code to your Maple and run!   

The last command  convert(M,list)  provides the list of coordinates of the point M. Copy my code to your Maple and run!