From Jerry.Lewis at BiogenIdec.com  Thu Oct 22 04:20:13 2009
From: Jerry.Lewis at BiogenIdec.com (Jerry.Lewis at BiogenIdec.com)
Date: Thu, 22 Oct 2009 04:20:13 +0200 (CEST)
Subject: [Rd] trigamma for very large arguments (PR#14020)
Message-ID: <20091022022013.87460282EF4F@mail.pubhealth.ku.dk>

Full_Name: Jerry W. Lewis
Version: 2.9.2
OS: Windows XP Professional
Submission from: (NULL) (96.237.55.233)


trigamma(x) returns 0 for x>1e152, yet
  trigamma <- function(x) 1/x
gives machine accuracy for any x>1e16



[Rd] trigamma for very large arguments (PR#14020)
Jerry.Lewis at BiogenIdec.com