login
A195728
Decimal expansion of arctan(sqrt(6)).
1
1, 1, 8, 3, 1, 9, 9, 6, 4, 0, 1, 3, 9, 7, 1, 5, 9, 6, 5, 6, 2, 9, 2, 7, 4, 8, 3, 6, 0, 4, 8, 5, 1, 4, 7, 2, 9, 1, 9, 8, 6, 7, 5, 9, 8, 2, 6, 7, 6, 0, 5, 1, 6, 5, 2, 5, 2, 3, 3, 9, 0, 0, 6, 5, 3, 6, 5, 8, 4, 9, 3, 6, 4, 3, 9, 2, 0, 6, 5, 0, 9, 9, 6, 6, 4, 1, 1, 4, 1, 3, 2, 7, 7, 8, 2, 9, 3, 9, 2, 9
OFFSET
1,3
COMMENTS
The phase shift of the transfer function of the last RC stage in a phase shift oscillator operating at the frequency of 1/(2*Pi*sqrt(6)*R*C), where R and C indicate respectively the resistance of the resistor and the capacitance of the capacitor. - Stefano Spezia, May 20 2023
LINKS
FORMULA
Equals arcsin(sqrt(6/7)) = arccos(sqrt(1/7)). - Amiram Eldar, Jul 08 2023
EXAMPLE
1.18319964013971596562...
MATHEMATICA
r = Sqrt[6]; N[ArcTan[r], 100]
RealDigits[%] (* A195728 *)
PROG
(PARI) atan(sqrt(6)) \\ G. C. Greubel, Aug 20 2018
(Magma) SetDefaultRealField(RealField(100)); Arctan(Sqrt(6)); // G. C. Greubel, Aug 20 2018
CROSSREFS
Sequence in context: A056030 A364889 A195473 * A214406 A176454 A199380
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Sep 23 2011
STATUS
approved