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Mathematics of Computation

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Chebyshev approximations for the natural logarithm of the Gamma function

Authors: W. J. Cody and K. E. Hillstrom
Journal: Math. Comp. 21 (1967), 198-203
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Abstract: Rational Chebyshev approximations are given for the natural logarithm of the real gamma function for arguments in the intervals $ [0.5,1.5]$, $ [1.5,4.0]$ and $ [4.0,12.0]$. Maximal relative errors range down to $ 1 \times {10^{ - 17}}$.

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Article copyright: © Copyright 1967 American Mathematical Society