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A195705
Decimal expansion of arctan(sqrt(3/8)).
3
5, 4, 9, 4, 6, 7, 2, 4, 4, 7, 5, 7, 6, 2, 7, 3, 7, 1, 0, 8, 5, 4, 0, 0, 2, 5, 0, 3, 2, 6, 7, 3, 1, 9, 7, 6, 9, 9, 3, 0, 6, 1, 4, 2, 4, 2, 5, 6, 8, 9, 1, 9, 0, 6, 8, 2, 3, 2, 2, 4, 8, 1, 3, 3, 3, 3, 9, 9, 8, 2, 8, 1, 3, 9, 4, 6, 6, 3, 7, 0, 7, 8, 4, 3, 0, 0, 0, 9, 9, 9, 7, 3, 0, 0, 6, 2, 1, 6, 0, 2
OFFSET
0,1
FORMULA
Equals arcsin(sqrt(3/11)) = arccos(2*sqrt(2/11)). - Amiram Eldar, Jul 09 2023
EXAMPLE
arctan(sqrt(3/8)) = 0.549467244757...
MATHEMATICA
r = Sqrt[3/8];
N[ArcSin[r], 100]
RealDigits[%] (* A195700 *)
N[ArcCos[r], 100]
RealDigits[%] (* A195703 *)
N[ArcTan[r], 100]
RealDigits[%] (* A195705 *)
N[ArcCos[-r], 100]
RealDigits[%] (* A195706 *)
PROG
(PARI) atan(sqrt(3/8)) \\ G. C. Greubel, Nov 18 2017
(Magma) [Arctan(Sqrt(3/8))]; // G. C. Greubel, Nov 18 2017
CROSSREFS
Cf. A195700.
Sequence in context: A156057 A125057 A021186 * A212878 A376258 A092302
KEYWORD
nonn,cons,changed
AUTHOR
Clark Kimberling, Sep 23 2011
STATUS
approved