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: [mg3343] Re: [Q] Erfi - what is it?
  • From: ianc (Ian Collier)
  • Date: 29 Feb 1996 13:37:12 -0600
  • Approved: usenet@wri.com
  • Distribution: local
  • Newsgroups: wri.mathgroup
  • Organization: Wolfram Research, Inc.
  • Sender: daemon at wri.com

In article <4gmheq$gmv at dragonfly.wolfram.com>, pherron at sphinx.Stanford.EDU
(Michael C. Herron) 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

Mathematica's online help says:

In[4]:=
    ?Erfi

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

I hope this helps.

--Ian

-----------------------------------------------------------
Ian Collier
Wolfram Research, Inc.
-----------------------------------------------------------
tel:(217) 398-0700   fax:(217) 398-0747    ianc at wolfram.com
Wolfram Research Home Page:         http://www.wolfram.com/
-----------------------------------------------------------


  • Prev by Date: Re: [Q] Erfi - what is it?
  • Next by Date: Slow ReIm
  • Previous by thread: Re: [Q] Erfi - what is it?
  • Next by thread: Exceptions handling