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A197009
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Decimal expansion of the slope of the line y=mx which meets the curve y=cos(x+1) orthogonally over the interval [0, 2*Pi] (as in A197006).
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2
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1, 0, 4, 4, 7, 3, 5, 8, 2, 5, 1, 0, 2, 5, 9, 1, 9, 6, 4, 4, 6, 7, 0, 4, 6, 7, 1, 2, 5, 0, 4, 4, 0, 4, 1, 1, 3, 0, 4, 8, 6, 5, 8, 9, 3, 2, 8, 0, 5, 0, 5, 9, 5, 7, 8, 8, 7, 4, 2, 8, 3, 1, 8, 2, 0, 8, 4, 6, 5, 0, 8, 0, 5, 9, 3, 0, 7, 3, 2, 6, 8, 9, 7, 2, 4, 3, 1, 3, 3, 0, 3, 9, 5, 6, 6, 9, 3, 8, 4, 5, 3, 7
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OFFSET
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1,3
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COMMENTS
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See the Mathematica program for a graph.
xo=0.277097976418521518914833086895...
yo=0.289494183027862650094360757305...
m=1.0447358251025919644670467125044...
|OP|=0.4007370341535820008719293563...
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LINKS
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EXAMPLE
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1.044735825102591964467046712504404113048658932805059578874283182084650....
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MATHEMATICA
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c = 1;
xo = x /. FindRoot[x == Sin[x + c] Cos[x + c], {x, .8, 1.2}, WorkingPrecision -> 100]
m = 1/Sin[xo + c]
yo = m*xo
d = Sqrt[xo^2 + yo^2]
Show[Plot[{Cos[x + c], yo - (1/m) (x - xo)}, {x, -Pi/4, Pi/2}],
ContourPlot[{y == m*x}, {x, 0, Pi}, {y, 0, 1}], PlotRange -> All,
AspectRatio -> Automatic, AxesOrigin -> Automatic]
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PROG
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(PARI) default(realprecision, 100); 1/sin(1 + solve(x=0, 2, x-sin(x+1)*cos(x+1))) \\ G. C. Greubel, Nov 16 2018
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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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