A200385 Decimal expansion of least x>0 satisfying 3*x^2+2=tan(x).

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

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=1.45114125891546019821987565757144529866649279...

Mathematica

a = 3; b = 0; c = 2;
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, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r]  (* A200385 *)

Crossrefs

Cf. A200338.

Sequence in context: A028360 A010301 A335862 * A046576 A016493 A101626

Adjacent sequences: A200382 A200383 A200384 * A200386 A200387 A200388

Keyword

nonn,cons

Author

Clark Kimberling, Nov 17 2011

Status

approved