.TRANSFORM.Math.psi

Information

Implementation of the psi or digamma function. See also scipy.special.psi or scipy.special.digamma

Source:

- http://scipp.ucsc.edu/~haber/ph116A/psifun_11.pdf

- NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, NIST handbook of mathematical functions, F. W. J. Olver et al., Eds., Cambridge University Press, Cambridge New York Melbourne (2010).

Interface

function psi
  extends TRANSFORM.Icons.Function;
  input Real x "Input value";
  input Integer nk = 10 "Number of summations";
  output Real psi "psi function value";
end psi;