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A198559
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Decimal expansion of x>0 having 2*x^2-2x=3*sin(x).
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2
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1, 8, 0, 7, 0, 3, 4, 0, 8, 1, 7, 3, 9, 4, 1, 0, 8, 8, 6, 1, 3, 7, 8, 3, 3, 4, 2, 0, 9, 6, 8, 5, 9, 8, 0, 6, 4, 8, 6, 7, 0, 2, 9, 9, 7, 9, 5, 6, 3, 2, 1, 2, 1, 6, 1, 5, 1, 0, 9, 6, 3, 5, 6, 8, 0, 2, 7, 3, 7, 0, 7, 7, 8, 6, 2, 5, 3, 7, 4, 7, 6, 0, 9, 0, 6, 5, 3, 9, 6, 7, 8, 6, 8, 8, 9, 4, 6, 4, 5
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OFFSET
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1,2
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COMMENTS
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See A198414 for a guide to related sequences. The Mathematica program includes a graph.
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LINKS
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EXAMPLE
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x=1.80703408173941088613783342096859806486702997...
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MATHEMATICA
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a = 2; b = -2; c = 3;
f[x_] := a*x^2 + b*x; g[x_] := c*Sin[x]
Plot[{f[x], g[x]}, {x, -.2, 2}]
r = x /. FindRoot[f[x] == g[x], {x, 1.8, 1.81}, WorkingPrecision -> 110]
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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