# spherical coordinates

 P: 603 Use the relations between Cartesian (x,y,z) and spherical coordinates ([itex]r,\theta,\phi[/tex]) to substitute for x, y and z: $$x=rsin(\phi)cos(\theta)$$ $$y=rsin(\phi)sin(\theta)$$ $$z=rcos(\phi)$$ where phi is the angle between a vector and the z-axis. theta is the angle between the projection on the x,y plane ad the x-axis.