OFFSET
0,1
COMMENTS
Area of lamina found by Sprague in the Lebesgue minimal problem.
LINKS
Eric Weisstein's World of Mathematics, Lebesgue Minimal Problem
EXAMPLE
0.844137123...
MATHEMATICA
RealDigits[-109/121-82/(121Sqrt[3])+(2Sqrt[-35139+28634Sqrt[3]])/121-Pi/3+ ArcCos[(-1+Sqrt[3])/2], 10, 120][[1]] (* Harvey P. Dale, Sep 22 2020 *)
CROSSREFS
KEYWORD
AUTHOR
Eric W. Weisstein, Apr 16 2004
STATUS
approved