A199792 Decimal expansion of x>0 satisfying 3*x^2-2*x*cos(x)=2*sin(x).
9, 5, 4, 9, 5, 6, 8, 5, 5, 8, 6, 2, 7, 9, 1, 4, 3, 4, 7, 2, 5, 7, 1, 4, 1, 1, 1, 6, 0, 9, 9, 5, 6, 1, 5, 7, 9, 6, 4, 9, 1, 2, 2, 5, 0, 6, 0, 6, 8, 6, 8, 6, 0, 5, 7, 5, 9, 6, 8, 5, 7, 5, 2, 9, 0, 3, 4, 9, 7, 4, 5, 9, 0, 1, 2, 0, 6, 4, 9, 1, 6, 2, 6, 2, 7, 1, 6, 3, 6, 5, 7, 7, 8, 1, 2, 8, 5, 4, 2
Offset: 0
Examples
0.9549568558627914347257141116099561579649122...
Crossrefs
Cf. A199597.
Programs
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Mathematica
a = 3; b = -2; c = 2; f[x_] := a*x^2 + b*x*Cos[x]; g[x_] := c*Sin[x] Plot[{f[x], g[x]}, {x, -1, 2}, {AxesOrigin -> {0, 0}}] r = x /. FindRoot[f[x] == g[x], {x, .95, .96}, WorkingPrecision -> 110] RealDigits[r] (* A199792 *)
Comments