A198756 Decimal expansion of x>0 satisfying x^2+cos(x)=3.

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

Offset

1,2

Comments

See A198755 for a guide to related sequences. The Mathematica program includes a graph.

Links

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

Example

x=1.7951166418203997156399302764467948846220...

Mathematica

a = 1; b = 1; c = 3;
f[x_] := a*x^2 + b*Cos[x]; g[x_] := c
Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, 1.79, 1.80}, WorkingPrecision -> 110]
RealDigits[r]   (* A198756 *)

Crossrefs

Cf. A198755.

Sequence in context: A118270 A179292 A361972 * A140899 A201925 A021561

Adjacent sequences: A198753 A198754 A198755 * A198757 A198758 A198759

Keyword

nonn,cons

Author

Clark Kimberling, Oct 30 2011

Status

approved