Is it possible to describe a position of a point $A$ (in 3D) w.r.t. the position and orientation of 3 other points? If so, how?
FYI, the 3 other points lie on a plane, whereas the point $A$ is not on the plane.
Just to elaborate, initially I have the info for all four points. My goal is to find where point $A$ is when the other three points changing position and orientation.