coordinates of a vector from the coordinates of two points
Let(O,`vec(i)`,`vec(j)`) be a reference frame of the plane. Let D and A be two points of coordinates `(15,13)` and `(4,8)` respectively in this frame, compute the coordinates of the vector `vec(DA)`.
This type of exercise can be solved using the function : vector_coordinates
Course reminder : Vectors | Geometry