解由 36x^2+36y^2+36z^2-36x+24y-72z-95=0得x^2+y^2+z^2-x+2/3y-2z-95/36=0故知球心为横标为x=1/2,纵标为y=-1/3,竖标为z=1故球心为(1/2,-1/3,1).