Re: [Q] Erfi - what is it?
- To: mathgroup at smc.vnet.net
- Subject: [mg3350] Re: [mg3328] [Q] Erfi - what is it?
- From: Peder Thusgaard Ruhoff <ptk at imada.ou.dk>
- Date: Thu, 29 Feb 1996 03:24:41 -0500
- Sender: owner-wri-mathgroup at wolfram.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
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Peder Thusgaard Ruhoff Phone: (+45) 66 15 86 96, ext. 2411
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