A198574 Decimal expansion of x>0 satisfying 4*x^2-3x=2*sin(x).
1, 1, 4, 7, 3, 0, 4, 8, 9, 8, 1, 3, 5, 2, 4, 9, 4, 2, 9, 1, 7, 5, 0, 4, 3, 0, 1, 1, 7, 0, 6, 4, 1, 7, 4, 1, 6, 3, 7, 4, 4, 6, 2, 8, 7, 2, 2, 1, 2, 2, 0, 6, 6, 2, 5, 4, 7, 2, 0, 8, 4, 3, 5, 6, 9, 5, 2, 4, 9, 8, 4, 8, 2, 5, 6, 4, 3, 6, 6, 9, 2, 0, 1, 1, 0, 4, 4, 8, 7, 2, 6, 6, 1, 4, 0, 3, 2, 4, 8
Offset: 1
Examples
1.1473048981352494291750430117064174163744...
Crossrefs
Cf. A198414.
Programs
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Mathematica
a = 4; b = -3; c = 2; f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x] Plot[{f[x], g[x]}, {x, -.2, 1.3}] r = x /. FindRoot[f[x] == g[x], {x, 1.14, 1.15}, WorkingPrecision -> 110] RealDigits[r] (* A198574 *)
Comments