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
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Ian Collier
Wolfram Research, Inc.
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