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
G. C. Greubel, Table of n, a(n) for n = 1..10000
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
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Sep 23 2011
STATUS
approved