

A200495


Decimal expansion of least x>0 satisfying 2*x^2x+3=tan(x).


2



1, 3, 9, 0, 1, 3, 3, 0, 5, 2, 8, 3, 3, 6, 3, 1, 7, 1, 4, 7, 9, 1, 9, 1, 2, 7, 1, 2, 3, 7, 5, 5, 7, 9, 9, 3, 8, 9, 3, 6, 5, 5, 0, 4, 9, 8, 4, 7, 7, 9, 0, 3, 9, 8, 9, 9, 1, 6, 0, 7, 4, 5, 1, 1, 4, 3, 6, 2, 7, 8, 7, 9, 3, 2, 9, 2, 9, 1, 7, 8, 9, 7, 8, 9, 6, 2, 8, 0, 0, 1, 8, 8, 1, 0, 5, 9, 2, 1, 2
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OFFSET

1,2


COMMENTS

See A200338 for a guide to related sequences. The Mathematica program includes a graph.


LINKS

Table of n, a(n) for n=1..99.


EXAMPLE

x=1.390133052833631714791912712375579938...


MATHEMATICA

a = 2; b = 1; c = 3;
f[x_] := a*x^2 + b*x + c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, .1, Pi/2}, {AxesOrigin > {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, 1.39, 1.4}, WorkingPrecision > 110]
RealDigits[r] (* A200495 *)


CROSSREFS

Cf. A200338.
Sequence in context: A122759 A247042 A274400 * A272535 A016626 A126321
Adjacent sequences: A200492 A200493 A200494 * A200496 A200497 A200498


KEYWORD

nonn,cons


AUTHOR

Clark Kimberling, Nov 19 2011


STATUS

approved



