OFFSET
1,1
COMMENTS
With offset 2, decimal expansion of 8*Pi.
8*Pi is also the surface area of a sphere whose diameter equals the square root of 8, hence its radius equals the square root of 2. More generally x*Pi is also the surface area of a sphere whose diameter equals the square root of x. - Omar E. Pol, Dec 18 2013
EXAMPLE
4*Pi/5 = 2.5132741228718345907701147066236023073577...
8*Pi = 25.132741228718345907701147066236023073577...
MATHEMATICA
RealDigits[(4 Pi)/5, 10, 120][[1]] (* Harvey P. Dale, Aug 24 2017 *)
PROG
(PARI) .8*Pi \\ Charles R Greathouse IV, Oct 01 2022
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Omar E. Pol, Oct 03 2013
STATUS
approved