OFFSET
0,1
COMMENTS
D/2=sqrt(3*sqrt(3)/Pi)/2 corresponds to the radius of the area-bisecting concentric circle within the unit-sided hexagon.
EXAMPLE
sqrt(3*sqrt(3)/Pi)/2 = 0.6430370685787437846417825056651579788623049833326304871239...
MATHEMATICA
RealDigits[Sqrt[(3Sqrt[3])/Pi]/2, 10, 120][[1]] (* Harvey P. Dale, Aug 27 2017 *)
PROG
(PARI) sqrt(sqrt(27)/Pi)/2 \\ Charles R Greathouse IV, Oct 01 2022
CROSSREFS
KEYWORD
AUTHOR
Lekraj Beedassy, May 14 2004
EXTENSIONS
Removed leading zero and adjusted offset - R. J. Mathar, Feb 06 2009
Corrected and extended by Harvey P. Dale, Aug 27 2017
STATUS
approved