MathGroup Archive 2011

[Date Index] [Thread Index] [Author Index]

Search the Archive


  • To: mathgroup at
  • Subject: [mg122602] LogErfc
  • From: Shawn Garbett <shawn.garbett at>
  • Date: Thu, 3 Nov 2011 03:44:33 -0500 (EST)
  • Delivered-to:

I need to have a LogErfc function to be able to compute another
function in a numerically stable manner. I found the function in the
GSL, I found it in R, and even in another system, there's a copy of code to do
it floating around. However, I need it in Mathematica and Log[Erfc[x]]
doesn't cut in due to underflow. Cody solved this in 1969, and I could
code his solution, but I was hoping that someone had already solved
this in Mathematica. Anyone?

  • Follow-Ups:
    • Re: LogErfc
      • From: Daniel Lichtblau <>
  • Prev by Date: Re: Significant Gene expression analysis in Mathematica
  • Next by Date: Re: nVidia Optumus prevents using CUDA?
  • Previous by thread: Re: Simple DSolve equation
  • Next by thread: Re: LogErfc