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%I #14 Jan 16 2017 14:06:58
%S 9,7,7,2,1,3,3,0,7,9,4,2,0,0,6,7,3,3,2,9,2,0,6,9,4,8,6,4,0,6,1,8,2,3,
%T 4,3,6,4,0,8,3,4,6,0,9,9,9,4,3,2,5,6,3,8,0,0,9,5,2,3,2,8,6,5,3,1,8,1,
%U 0,5,9,2,4,7,7,7,1,4,1,3,1,7,3,0,2,0,7,5,6,5,4,3,6,2,9,2,8,7,3,4,3,5,5
%N Decimal expansion of Psi(Pi).
%C Psi(x) is the digamma function (logarithmic derivative of the Gamma function).
%H G. C. Greubel, <a href="/A269547/b269547.txt">Table of n, a(n) for n = 0..5000</a>
%e 0.9772133079420067332920694864061823436408346099943256...
%p evalf(Psi(Pi), 120)
%t RealDigits[PolyGamma[Pi], 10, 120][[1]]
%o (PARI) default(realprecision, 120); psi(Pi)
%o (MATLAB) format long; psi(pi)
%Y Cf. A269545, A269546, A269557, A269558, A269559, A257955, A257957, A257958, A257959, A002161.
%Y Cf. A073005, A068466, A175380, A175379, A220086, A203142, A256190, A256191, A256192, A203140, A203139, A203138, A203137.
%K nonn,cons
%O 0,1
%A _Iaroslav V. Blagouchine_, Feb 29 2016
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