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A196615
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Decimal expansion of the least x>0 satisfying 5*sec(x)=x.
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5
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5, 7, 6, 2, 8, 0, 9, 4, 5, 6, 0, 9, 0, 9, 8, 8, 0, 3, 3, 0, 0, 7, 3, 0, 0, 1, 5, 2, 9, 9, 9, 9, 5, 3, 3, 5, 6, 6, 7, 6, 8, 1, 9, 6, 8, 0, 7, 1, 2, 0, 5, 6, 6, 6, 8, 0, 8, 3, 2, 4, 9, 4, 4, 8, 5, 3, 2, 7, 4, 1, 9, 7, 7, 9, 1, 4, 0, 1, 0, 3, 8, 1, 8, 6, 7, 5, 1, 3, 9, 0, 3, 4, 8, 4, 4, 7, 2, 6, 9, 2, 6, 9, 7, 8, 9
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OFFSET
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1,1
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LINKS
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EXAMPLE
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x=5.762809456090988033007300152999953356676...
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MATHEMATICA
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Plot[{1/x, 2/x, 3/x, 4/x, Cos[x]}, {x, 0, 2 Pi}]
t = x /. FindRoot[1/x == Cos[x], {x, 4, 7}, WorkingPrecision -> 100]
t = x /. FindRoot[2/x == Cos[x], {x, 4, 7}, WorkingPrecision -> 100]
t = x /. FindRoot[3/x == Cos[x], {x, 4, 7}, WorkingPrecision -> 100]
t = x /. FindRoot[4/x == Cos[x], {x, 4, 7}, WorkingPrecision -> 100]
t = x /. FindRoot[5/x == Cos[x], {x, 4, 7}, WorkingPrecision -> 100]
t = x /. FindRoot[6/x == Cos[x], {x, 4, 7}, WorkingPrecision -> 100]
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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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