A199448 Decimal expansion of x>0 satisfying 3*x^2+x*sin(x)=3*cos(x).

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

Offset

0,1

Comments

See A199370 for a guide to related sequences. The Mathematica program includes a graph.

Links

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

Example

x=0.74952883250911547864953783103346317136524985031130...

Mathematica

a = 3; b = 1; c = 3;
f[x_] := a*x^2 + b*x*Sin[x]; g[x_] := c*Cos[x]
Plot[{f[x], g[x]}, {x, -Pi, Pi}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .74, .75}, WorkingPrecision -> 110]
RealDigits[r] (* A199448 *)

Crossrefs

Cf. A199429.

Sequence in context: A008568 A019795 A200305 * A110644 A117028 A138282

Adjacent sequences: A199445 A199446 A199447 * A199449 A199450 A199451

Keyword

nonn,cons

Author

Clark Kimberling, Nov 06 2011

Status

approved