OFFSET
0,1
COMMENTS
Also the total harmonic distortion (THD) of a square wave, see formula (11) in the Blagouchine & Moreau link.
LINKS
I. V. Blagouchine and E. Moreau, Analytic Method for the Computation of the Total Harmonic Distortion by the Cauchy Method of Residues. IEEE Trans. Commun., vol. 59, no. 9, pp. 2478-2491, 2011. PDF file.
EXAMPLE
0.4834258476086790990137326370639317022328017276651459...
MAPLE
evalf(sqrt((1/8)*Pi^2-1), 120)
MATHEMATICA
RealDigits[Sqrt[Pi^2/8 - 1], 10, 120][[1]]
PROG
(PARI) default(realprecision, 120); sqrt(Pi^2/8-1)
(MATLAB) format long; sqrt(pi^2/8-1)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Iaroslav V. Blagouchine, Mar 11 2018
STATUS
approved