A200491 Decimal expansion of least x>0 satisfying x^2-4x+3=tan(x).

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

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=0.66455122781823072691096118850300904040...

Mathematica

a = 1; b = -4; 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, .66, .67}, WorkingPrecision -> 110]
RealDigits[r]    (* A200491 *)

Crossrefs

Cf. A200338.

Sequence in context: A090966 A254153 A255438 * A245297 A371504 A002421

Adjacent sequences: A200488 A200489 A200490 * A200492 A200493 A200494

Keyword

nonn,cons

Author

Clark Kimberling, Nov 18 2011

Status

approved