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A303270
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Decimal expansion of Integral_{x=0..1} 1/log(|log(x)|) dx (negated).
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1
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1, 5, 4, 4, 7, 9, 6, 4, 1, 3, 2, 0, 0, 4, 2, 6, 8, 5, 3, 4, 5, 9
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OFFSET
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0,2
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COMMENTS
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In a certain Japanese mathematics dictionary, the value of Integral_{0..1} 1/(log|log x|) dx was given for many years as 0.
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LINKS
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FORMULA
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Equals Integral_{x>=0} exp(-x)/log(x) dx (negated).
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EXAMPLE
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0.15447964132...
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MATHEMATICA
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NIntegrate[-1/Log[-Log[x]], {x, 0, 1}, AccuracyGoal -> 2^8, WorkingPrecision -> 2^16, PrecisionGoal -> 2^7, MaxRecursion -> 2^15, MaxPoints -> 2^20, Exclusions -> {1/E}] (* Robert G. Wilson v, Feb 20 2019 *)
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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