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 A198370 Decimal expansion of greatest x having 4*x^2+4x=cos(x). 3
 2, 0, 3, 4, 5, 1, 3, 2, 5, 5, 3, 1, 9, 2, 5, 0, 4, 1, 5, 5, 5, 1, 1, 6, 8, 0, 5, 0, 6, 0, 6, 1, 1, 9, 9, 5, 6, 1, 1, 6, 1, 8, 6, 7, 7, 8, 9, 0, 3, 4, 4, 6, 3, 3, 3, 3, 1, 5, 2, 7, 0, 3, 1, 3, 9, 3, 5, 5, 9, 1, 7, 6, 0, 6, 0, 1, 6, 8, 6, 0, 1, 3, 4, 9, 1, 7, 1, 6, 3, 2, 3, 1, 6, 6, 3, 3, 7, 7, 6 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS See A197737 for a guide to related sequences.  The Mathematica program includes a graph. LINKS EXAMPLE least x: -1.1023847462794395958058183658678813... greatest x: 0.203451325531925041555116805060611... MATHEMATICA a = 4; b = 4; c = 1; f[x_] := a*x^2 + b*x; g[x_] := c*Cos[x] Plot[{f[x], g[x]}, {x, -2, 1}] r1 = x /. FindRoot[f[x] == g[x], {x, -1.2, -1.1}, WorkingPrecision -> 110] RealDigits[r1] (* A198369 *) r2 = x /. FindRoot[f[x] == g[x], {x, .20, .21}, WorkingPrecision -> 110] RealDigits[r2] (* A198370 *) CROSSREFS Cf. A197737. Sequence in context: A290820 A278029 A066246 * A173517 A109921 A139637 Adjacent sequences:  A198367 A198368 A198369 * A198371 A198372 A198373 KEYWORD nonn,cons AUTHOR Clark Kimberling, Oct 24 2011 STATUS approved

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Last modified January 19 21:52 EST 2019. Contains 319310 sequences. (Running on oeis4.)