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A222458
Decimal expansion of the negated value of the digamma function at 5/6.
5
8, 9, 0, 7, 2, 9, 4, 1, 2, 6, 7, 2, 2, 6, 1, 2, 4, 0, 6, 4, 2, 7, 2, 6, 8, 0, 1, 9, 1, 9, 3, 1, 0, 5, 2, 5, 7, 3, 8, 2, 9, 6, 0, 6, 9, 2, 5, 5, 4, 4, 7, 4, 2, 1, 2, 9, 4, 3, 4, 1, 3, 5, 1, 2, 4, 5, 7, 1, 1, 6, 3, 8, 8, 5, 5, 4, 3, 6, 7, 2, 6, 9, 3, 2, 9, 0, 9
OFFSET
0,1
FORMULA
Psi(5/6) = -gamma + Pi*sqrt(3)/2 - 3*log(3)/2 - 2*log(2).
EXAMPLE
Psi(5/6) = -0.890729412672261240642726801919310525738296...
MATHEMATICA
RealDigits[-PolyGamma[5/6], 10, 90][[1]]
PROG
(PARI) -psi(5/6)
(Maxima) fpprec:90; ev(bfloat(-psi[0](5/6)));
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Bruno Berselli, Feb 21 2013
STATUS
approved