Polar Plane of a Point
For sphere:
$$x^2+y^2+z^2+2gx+2fy+2hz+c=0$$
the polar plane of point $$P(x_1,y_1,z_1)$$ is:
$$xx_1+yy_1+zz_1+g(x+x_1)+f(y+y_1)+h(z+z_1)+c=0$$
Usage
- Used to obtain the polar plane corresponding to a point with respect to a sphere.