Perform the angle between three points (Graham Scan).
[A] = NL_V_AngleP1P2P0(P1,P2,P0)
Point.
Angle.
NL_V_AngleP1P2P0 performs the angle A between the three points {P0P1}{P0P2} (Graham Scan).
P0=[0 0]; P1=[100 0]; P2=[0 100]; [A]=NL_V_AngleP1P2P0(P1,P2,P0);//application of NL_V_AngleP1P2P0