main/src/georegression/geometry/UtilPlane3D_F64.java
public static double evaluate( PlaneNormal3D_F64 plane , Point3D_F64 point ) {
		double dx = point.x - plane.p.x;
		double dy = point.y - plane.p.y;
		double dz = point.z - plane.p.z;

		return plane.n.x*dx + plane.n.y*dy + plane.n.z*dz;
	}
public static double evaluate( PlaneNormal3D_F64 plane , Point3D_F64 point ) {
		double dx = point.x - plane.p.x;
		double dy = point.y - plane.p.y;
		double dz = point.z - plane.p.z;

		return plane.n.x*dx + plane.n.y*dy + plane.n.z*dz;
	}
Applies the plane's definition to test to see if a point is one the plane

@param plane Equation of the plane
@param point Equation of the point.
@return zero if the point is one the plane.