A086178 Decimal expansion of 1 + 2*sqrt(2).
3, 8, 2, 8, 4, 2, 7, 1, 2, 4, 7, 4, 6, 1, 9, 0, 0, 9, 7, 6, 0, 3, 3, 7, 7, 4, 4, 8, 4, 1, 9, 3, 9, 6, 1, 5, 7, 1, 3, 9, 3, 4, 3, 7, 5, 0, 7, 5, 3, 8, 9, 6, 1, 4, 6, 3, 5, 3, 3, 5, 9, 4, 7, 5, 9, 8, 1, 4, 6, 4, 9, 5, 6, 9, 2, 4, 2, 1, 4, 0, 7, 7, 7, 0, 0, 7, 7, 5, 0, 6, 8, 6, 5, 5, 2, 8, 3, 1, 4, 5, 4, 7
Offset: 1
Examples
3.8284...
Links
- J. Bechhoefer, The Birth of Period 3, Revisited, Mathematics Magazine pp. 115-8 Vol. 69 No. Apr 02 1996
- W. B. Gordon, Period Three Trajectories of the Logistic Map, Mathematics Magazine pp. 118-120 Vol. 69 No. Apr 02 1996
- J. Meiss, Period three saddle-node bifurcation for the Logistic Map
- P. Saha & S. H. Strogatz, The Birth of period 3, Mathematics Magazine pp. 42-7 Vol. 68, No. 1, 1995.
- Eric Weisstein's World of Mathematics, Logistic Map
- Index entries for algebraic numbers, degree 2
Crossrefs
Cf. A086179.
Programs
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Mathematica
RealDigits[1+2Sqrt[2],10,120][[1]] (* Harvey P. Dale, Jun 13 2013 *)
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PARI
1+2*sqrt(2) \\ Felix Fröhlich, Sep 26 2017
Formula
Equals 1+A010466 . - R. J. Mathar, Sep 12 2008
Comments