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 A200346 Decimal expansion of least x>0 satisfying x^2+2x+1=tan(x). 2
 1, 3, 9, 8, 7, 1, 8, 4, 7, 5, 9, 7, 1, 1, 1, 4, 8, 0, 4, 5, 0, 6, 7, 2, 5, 2, 5, 7, 2, 2, 8, 0, 9, 9, 4, 9, 8, 1, 7, 4, 9, 0, 9, 2, 2, 8, 3, 8, 8, 0, 5, 5, 0, 4, 0, 7, 4, 4, 2, 1, 2, 8, 2, 8, 7, 5, 3, 6, 0, 7, 5, 4, 4, 1, 9, 0, 1, 4, 7, 9, 0, 0, 4, 3, 4, 4, 3, 8, 6, 3, 2, 4, 8, 7, 0, 4, 8, 9, 8 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS See A200338 for a guide to related sequences. The Mathematica program includes a graph. LINKS EXAMPLE x=1.398718475971114804506725257228099498174... MATHEMATICA a = 1; b = 2; c = 1; 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, 1.3, 1.4}, WorkingPrecision -> 110] RealDigits[r] (* A200346 *) CROSSREFS Cf. A200338. Sequence in context: A070342 A125125 A021719 * A351404 A199781 A193117 Adjacent sequences: A200343 A200344 A200345 * A200347 A200348 A200349 KEYWORD nonn,cons AUTHOR Clark Kimberling, Nov 16 2011 STATUS approved

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Last modified March 29 12:48 EDT 2023. Contains 361599 sequences. (Running on oeis4.)