I want to know how to find that given 4 points that they are in a plane (3D)
There are 4 points with coordinates (3D)
x2,y2,z2 = 0,1,2
x3,y3,z3 = 0,1,3
x,y,z = 1,0,0
One can see that the 4 points are not in a plane but I want to know the formulas to see for other points...