A195787 Decimal expansion of arcsec(9).
1, 4, 5, 9, 4, 5, 5, 3, 1, 2, 4, 5, 3, 9, 3, 2, 7, 2, 6, 9, 0, 9, 5, 9, 3, 3, 1, 9, 6, 2, 6, 6, 4, 1, 3, 9, 0, 7, 9, 3, 0, 1, 1, 8, 2, 8, 0, 9, 5, 4, 2, 7, 3, 8, 1, 4, 1, 7, 8, 9, 8, 9, 8, 2, 9, 2, 3, 6, 3, 7, 7, 9, 9, 3, 3, 3, 5, 3, 4, 2, 7, 7, 5, 9, 0, 9, 6, 6, 8, 1, 5, 6, 3, 8, 9, 4, 7, 0, 0, 0
Offset: 1
Examples
arcsec(9)=1.4594553124539327269095933196266413907930...
Crossrefs
Cf. A195785.
Programs
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Mathematica
(See A195785.) RealDigits[ArcCos[1/9],10,120][[1]] (* Harvey P. Dale, May 22 2014 *)
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PARI
acos(1/9) \\ Charles R Greathouse IV, Apr 09 2014