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A195769
Decimal expansion of arctan(5).
3
1, 3, 7, 3, 4, 0, 0, 7, 6, 6, 9, 4, 5, 0, 1, 5, 8, 6, 0, 8, 6, 1, 2, 7, 1, 9, 2, 6, 4, 4, 4, 9, 6, 1, 1, 4, 8, 6, 5, 0, 9, 9, 9, 5, 9, 5, 8, 9, 9, 7, 0, 0, 8, 0, 8, 9, 6, 9, 7, 8, 3, 3, 5, 5, 9, 1, 2, 8, 7, 4, 2, 3, 3, 1, 6, 4, 8, 6, 0, 7, 1, 3, 5, 8, 1, 3, 1, 9, 5, 8, 4, 6, 3, 3, 7, 7, 0, 4, 8, 9
OFFSET
1,2
FORMULA
Equals arcsin(5/sqrt(26)) = arccos(1/sqrt(26)). - Amiram Eldar, Jul 11 2023
EXAMPLE
arctan(5) = 1.373400766945015860861271926444961148650999...
MATHEMATICA
r = 5;
N[ArcTan[r], 100]
RealDigits[%] (* A195769 *)
N[ArcCot[r], 100]
RealDigits[%] (* A105532 *)
N[ArcSec[r], 100]
RealDigits[%] (* A195771 *)
N[ArcCsc[r], 100]
RealDigits[%] (* A195772 *)
PROG
(PARI) atan(5) \\ Charles R Greathouse IV, Nov 20 2024
CROSSREFS
KEYWORD
nonn,cons,changed
AUTHOR
Clark Kimberling, Sep 24 2011
STATUS
approved