[Gretl-devel] Digamma function: possible mistake

Saturday, 5 November 2016

Dear Allin and Jack,

I think there is an error in the definition of the digamma function in
Gretl Command Reference.

Now we have:

<tex>
\psi(x) = d\Gamma(x)/dx
<\tex>

And I think it should be:

<tex>
\psi(x) = d\Gamma'(x)/dx
<\tex>

Um abraço,
Henrique Andrade