gammaln

The logarithm of gamma function.

Calling Sequence

y = gammaln(x)

Arguments

:x real vector : :y real vector with same size. :

Description

gammaln(x) evaluates the logarithm of gamma function at all the elements of x, avoiding underflow and overflow. x must be real.

Examples

gammaln(0.5)

See Also

• `gamma`_ The gamma function.
• `dlgamma`_ derivative of gammaln function, psi function

History

Version Description 5.4.0 Overloading allowed for list, mlist, tlist and hypermatrix types. .. _gamma: gamma.html .. _dlgamma: dlgamma.html