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lgamma

..  lgamma(x)

Compute the logarithm of the absolute value of :func:`gamma` for
:obj:`Real` ``x``, while for :obj:`Complex` ``x`` it computes the
logarithm of ``gamma(x)``.

Examples

In the Julia programming language, the function lgamma(x)

Compute the logarithm of the absolute value of gamma for a real number x. For a complex number x, it computes the logarithm of gamma(x).

julia> lgamma(3.5)
0.8728715609439694

julia> lgamma(1 + 2im)
-0.36643805392468204 - 1.1071487177940904im

Here are some common examples of its use:

1. Compute the logarithm of gamma for a real number:

   julia> lgamma(2.5)
   0.2846828704729192

   It computes the logarithm of gamma(2.5).

2. Compute the logarithm of gamma for a complex number:

   julia> lgamma(1 + 2im)
   -0.36643805392468204 - 1.1071487177940904im

   It computes the logarithm of gamma(1 + 2im).

Please note that the lgamma function behaves differently for real and complex numbers. For real numbers, it computes the logarithm of the absolute value of gamma(x), while for complex numbers, it computes the logarithm of gamma(x) directly.

See Also

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