Natural logarithm of the absolute value of the gamma function, log|Gamma(x)|.
Equivalent to R's lgamma(). Takes a single number.
Near the zeros x = 1 and x = 2 the result keeps full relative accuracy
(computed as lgamma(1 + e) = lgamma1p(e) and lgamma(2 + e) = lgamma1p(e) + log1p(e)).
Natural logarithm of the absolute value of the gamma function, log|Gamma(x)|. Equivalent to R's
lgamma(). Takes a single number.Near the zeros x = 1 and x = 2 the result keeps full relative accuracy (computed as lgamma(1 + e) = lgamma1p(e) and lgamma(2 + e) = lgamma1p(e) + log1p(e)).