A199445 Decimal expansion of x>0 satisfying 2*x^2+3*x*sin(x)=3*cos(x).
6, 9, 5, 3, 5, 3, 4, 7, 3, 9, 9, 3, 8, 2, 9, 9, 4, 0, 1, 2, 0, 3, 8, 1, 3, 8, 5, 2, 4, 6, 4, 8, 8, 6, 1, 9, 3, 2, 8, 9, 2, 6, 7, 7, 1, 6, 8, 1, 8, 4, 6, 9, 4, 6, 1, 2, 9, 3, 2, 9, 7, 7, 9, 6, 6, 6, 2, 5, 2, 9, 3, 7, 6, 5, 8, 5, 1, 6, 6, 9, 6, 1, 8, 0, 6, 1, 9, 2, 6, 4, 7, 0, 0, 7, 1, 0, 7, 7, 8
Offset: 0
Examples
0.695353473993829940120381385246488619328926771...
Crossrefs
Cf. A199429.
Programs
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Mathematica
a = 2; b = 3; c = 3; f[x_] := a*x^2 + b*x*Sin[x]; g[x_] := c*Cos[x] Plot[{f[x], g[x]}, {x, -Pi, Pi}, {AxesOrigin -> {0, 0}}] r = x /. FindRoot[f[x] == g[x], {x, .69, .70}, WorkingPrecision -> 110] RealDigits[r] (* A199445 *)
Comments