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A200492 Decimal expansion of least x>0 satisfying x^2-4x+4=tan(x). 2
8, 8, 9, 4, 7, 3, 0, 3, 5, 0, 3, 2, 5, 9, 7, 1, 7, 8, 1, 5, 5, 7, 0, 1, 8, 7, 0, 7, 4, 5, 6, 3, 7, 6, 9, 1, 0, 5, 1, 7, 0, 4, 0, 1, 1, 5, 8, 6, 0, 5, 1, 0, 5, 5, 5, 0, 0, 2, 5, 3, 9, 4, 6, 0, 6, 1, 1, 3, 7, 1, 6, 0, 8, 0, 4, 0, 1, 4, 2, 4, 8, 2, 8, 2, 6, 5, 9, 5, 9, 1, 6, 3, 0, 3, 2, 2, 7, 9, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

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

LINKS

Table of n, a(n) for n=0..98.

EXAMPLE

x=0.8894730350325971781557018707456376910517040...

MATHEMATICA

a = 1; b = -4; c = 4;

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, .88, .89}, WorkingPrecision -> 110]

RealDigits[r] (* A200492 *)

CROSSREFS

Cf. A200338.

Sequence in context: A195717 A309930 A193781 * A154707 A121309 A020785

Adjacent sequences: A200489 A200490 A200491 * A200493 A200494 A200495

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Nov 18 2011

STATUS

approved

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Last modified March 31 21:40 EDT 2023. Contains 361673 sequences. (Running on oeis4.)