dlgamma
derivative of gammaln function, psi function
Syntax
y = dlgamma(x)
Arguments
- x
real vector
- y
real vector with same size.
Description
dlgamma(x)
evaluates, at all the elements of
x
the logarithmic derivative of the gamma function
which corresponds also to the derivative of the gammaln function :
x
must be real. Also known as the psi
function.
Examples
dlgamma(0.5)
See also
History
Version | Description |
5.4.0 | Overloading allowed for list, mlist, tlist and hypermatrix types. |
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