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Euler-Mascheroni constant

The Euler-Mascheroni constant is a mathematical constant, used mainly in number theory, and is defined as the limiting difference between the harmonic series and the natural logarithm:

Intriguingly, the constant is also given by the integral:

Its value is approximately
γ ≈ 0.577215664901532860606512090082402431042159335 9399235988057672348848677267776646709369470632917467495...

It is not known whether γ is a rational number or not. However, continued fraction analysis shows that if γ is rational, its denominator has more than 10,000 digits.

The Euler-Mascheroni constant appears in

  • a product formula for the Gamma function
  • calculations of the digamma function

External link

Euler-Mascheroni constant


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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Euler-Mascheroni constant".