OFFSET
1,1
REFERENCES
Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 3.6 Sobolev Isoperimetric Constants, p. 223.
LINKS
FORMULA
Theta is the unique solution of the equation cos(t) - t/(t^2 + 1)*sin(t) = -1, with 0 < t < Pi.
EXAMPLE
2.4725480752401227014376355093582...
MATHEMATICA
theta = t /. FindRoot[Cos[t] - t/(t^2 + 1)*Sin[t] == -1, {t, 2}, WorkingPrecision -> 101]; RealDigits[theta] // First
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Jun 24 2014
STATUS
approved