derivative of gammaln function, psi function
y = dlgamma(x)
real vector
real vector with same size.
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.
Version | Description |
5.4.0 | Overloading allowed for list, mlist, tlist and hypermatrix types. |