5.12 Beta Function
ID: nist-digital-library-of-mathematical-functions/5-12-beta-function
Official NIST DLMF section 5.12. Equation 5.12.1 gives Euler's integral for the beta function and its expression as a ratio of gamma functions, with positive real parts of the two parameters. The integral identity supplies normalization and shifted-parameter moments for the beta distribution.
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