OFFSET
0,1
COMMENTS
Torsional rigidity constant for a full circular sector (sliced disk)-shaped shaft.
LINKS
Eric Weisstein's World of Mathematics, Torsional Rigidity.
EXAMPLE
0.87805568517172624086...
MATHEMATICA
RealDigits[Pi - 64/(9 *Pi), 10, 100][[1]] (* Amiram Eldar, Jun 09 2021 *)
PROG
(PARI) Pi - 64/9/Pi \\ Charles R Greathouse IV, Oct 01 2022
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Aug 26 2010
STATUS
approved