Editing Zu Chongzhi (section)

== Mathematics ==
{{further|Milü}}
{{Pi box}}
The majority of Zu's great mathematical works are recorded in his lost text the ''Zhui Shu''. Most schools argue about his complexity since traditionally the Chinese had developed mathematics as algebraic and equational. Logically, scholars assume that the ''Zhui Shu'' yields methods of cubic equations. His works on the accurate value of pi describe the lengthy calculations involved. Zu used [[Liu Hui's π algorithm|Liu Hui's {{pi}} algorithm]] described earlier by [[Liu Hui]] to inscribe a 12,288-gon. Zu's value of pi is precise to six decimal places and for almost nine hundred years thereafter no subsequent mathematician computed a value this precise.{{sfnp|Du|He|2000}} Zu also worked on deducing the formula for the volume of a sphere with his son Zu Gengzhi. In their calculation, Zu used the concept that two solids with equal cross-sectional areas at equal heights must also have equal volumes to find the volume of a Steinmetz solid. And further multiplied the volume of the Steinmetz solid with π/4, therefore found the volume of a sphere as πd^3/6 (d is the diameter of the sphere).