Category:Zu Chongzhi Fraction

This category contains results about Zu Chongzhi Fraction.
Definitions specific to this category can be found in Definitions/Zu Chongzhi Fraction.

The Zu Chongzhi fraction is an exceptionally accurate approximation to $\pi$ (pi):

$\pi \approx \dfrac {355} {113}$

whose decimal expansion is:

$\pi \approx 3 \cdotp 14159 \, 292$

This sequence is A068079 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).