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A198099 Decimal expansion of greatest x having x^2-3x=-2*cos(x). 3
3, 5, 2, 5, 8, 6, 7, 9, 0, 1, 2, 2, 7, 9, 5, 8, 6, 1, 7, 9, 5, 4, 8, 2, 5, 0, 8, 1, 7, 1, 1, 3, 9, 4, 3, 0, 9, 9, 4, 6, 9, 8, 7, 4, 7, 8, 3, 2, 2, 2, 5, 2, 7, 4, 0, 4, 3, 6, 2, 7, 9, 1, 3, 1, 4, 5, 5, 0, 0, 6, 7, 9, 4, 6, 7, 9, 5, 3, 0, 3, 7, 6, 7, 8, 4, 7, 2, 6, 4, 1, 2, 1, 6, 5, 5, 4, 9, 1, 3 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A197737 for a guide to related sequences.  The Mathematica program includes a graph.

LINKS

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

EXAMPLE

least x: 0.672255167738256880748604617870325976...

greatest x: 3.525867901227958617954825081711394...

MATHEMATICA

a = 1; b = -3; c = -2;

f[x_] := a*x^2 + b*x; g[x_] := c*Cos[x]

Plot[{f[x], g[x]}, {x, 0, 4}]

r1 = x /. FindRoot[f[x] == g[x], {x, .65, .68}, WorkingPrecision -> 110]

RealDigits[r1] (* A198098 *)

r2 = x /. FindRoot[f[x] == g[x], {x, 3.5, 3.6}, WorkingPrecision -> 110]

RealDigits[r2] (* A198099 *)

CROSSREFS

Cf. A197737.

Sequence in context: A090396 A086387 A073264 * A016657 A302793 A010782

Adjacent sequences:  A198096 A198097 A198098 * A198100 A198101 A198102

KEYWORD

nonn,cons

AUTHOR

Clark Kimberling, Oct 21 2011

STATUS

approved

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Last modified January 21 18:52 EST 2021. Contains 340352 sequences. (Running on oeis4.)