Chudnovsky algorithm

Summary

The Chudnovsky algorithm computes the digits of pi by summing a fast-converging series for $1/\pi$ found by David and Gregory Chudnovsky. Each term of the series adds about fourteen correct decimal digits. Evaluated with binary splitting and fast multiplication, it has been used for many record computations of $\pi$. It belongs to the same family as Ramanujan's series for 1/pi.