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A201772
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Decimal expansion of the number x satisfying x^2+x+4=e^x.
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2
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2, 5, 8, 5, 5, 5, 4, 6, 3, 3, 7, 1, 1, 7, 3, 7, 7, 9, 5, 6, 2, 4, 6, 8, 6, 3, 6, 3, 0, 2, 7, 8, 0, 6, 7, 7, 3, 2, 3, 0, 8, 3, 3, 3, 0, 0, 0, 0, 1, 7, 5, 4, 9, 2, 6, 0, 5, 2, 1, 4, 0, 3, 5, 9, 1, 1, 2, 8, 2, 4, 2, 8, 7, 0, 2, 2, 1, 9, 0, 7, 6, 1, 4, 0, 1, 3, 8, 0, 9, 7, 5, 8, 6, 7, 0, 3, 6, 2, 6
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OFFSET
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1,1
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COMMENTS
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See A201741 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=2.58555463371173779562468636302780677323083330000...
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MATHEMATICA
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a = 1; b = 1; c = 4;
f[x_] := a*x^2 + b*x + c; g[x_] := E^x
Plot[{f[x], g[x]}, {x, -1, 3}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, 2.5, 2.6}, 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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