You are here

Trisecting a Log

There is a log of precious wood 18 feet long whose bases are 5 feet and 2.5 feet in circumference.  Into what lengths should the log be cut to trisect its volume?

Jinkō-ki (Treatise on Large and Small Numbers), Yoshida Kōyū, 1627

Click here to reveal the answer


"Trisecting a Log," Convergence (August 2005)