Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
1996
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 1996

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

Search the Archive

Re: [Q] Erfi - what is it?

  • Subject: [mg3350] Re: [mg3328] [Q] Erfi - what is it?
  • From: ptk at imada.ou.dk (Peder Thusgaard Ruhoff)
  • Date: 29 Feb 1996 10:33:39 -0600
  • Approved: usenet@wri.com
  • Distribution: local
  • Newsgroups: wri.mathgroup
  • Organization: Wolfram Research, Inc.
  • Sender: daemon at wri.com

On Mon, 26 Feb 1996, Michael C. Herron <pherron at sphinx.Stanford.EDU> wrote:
> 
> I used mathematica to solve an integral that I could not myself do
> analytically.  The output contained a function Erfi[].  What is
> Erfi[]?  I am familiar with the error function and its complement
> (Erf[] and Erfc[] in mathematica), but I do not understand Erfi[].
> The function does not appear to be in the manuals that I have seen,
> either.
> 
> If someone could translate Erfi[] or provide a reference, I would
> appreciate it.
> 
> Thanks.
> 
> Michael
> 
> 
> 

Dear Michael,

You can get this information using Mathematica

========================================================================

Mathematica 2.2 for SPARC
Copyright 1988-94 Wolfram Research, Inc.
 -- Motif graphics initialized -- 

In[1]:= ?Erfi
Erfi[z] gives the imaginary error function erfi(z) == -i erf(i z).

========================================================================

Best wishes,

Peder

------------------------------------------------------------------------------
Peder Thusgaard Ruhoff                     Phone: (+45) 66 15 86 96, ext. 2411
Department of Information Technology       Fax:   (+45) 65 93 26 91
Odense University, Campusvej 55            Email: ptk at imada.ou.dk
DK-5230 Odense M, DENMARK

  "It is important for him who wants to discover not to confine himself
   to one chapter of science, but to keep in touch with various others."
                                                            - Jacques Hadamard
------------------------------------------------------------------------------



  • Prev by Date: Re: [Q] Erfi - what is it?
  • Next by Date: Re: Q: How to force an Equal[]
  • Previous by thread: Re: [Q] Erfi - what is it?
  • Next by thread: Re: [Q] Erfi - what is it?