OFFSET
0,2
COMMENTS
The area enclosed by the inner loop of the curve Cayley's sextic whose equation in polar coordinates is r(theta) = 4*cos(theta/3)^3. - Amiram Eldar, Jun 13 2023
LINKS
Eric Weisstein's World of Mathematics, Cayley's Sextic.
Wikipedia, Cayley's sextic.
EXAMPLE
0.05975299991453527528...
MATHEMATICA
RealDigits[(5*Pi - 9*Sqrt[3])/2, 10, 120, -1][[1]] (* Amiram Eldar, Jun 13 2023 *)
PROG
(PARI) 5*Pi - 9*sqrt(3)/2 \\ Charles R Greathouse IV, Oct 01 2022
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Eric W. Weisstein, Apr 22 2006
STATUS
approved