From: Brian Jackel <jackel@danlon.physics.uwo.ca>
Newsgroups: sci.math.num-analysis
Subject: Re: Error Function in complex argument...
Date: Wed, 02 Dec 1998 10:13:04 -0700

Man J wrote:

> I want to calculate the value of a error function in complex argument...
> i.e. w(z) = exp(-z*z) * erfc( -i*z)     where z is a complex  number,
>                                           i is square root of -1
>                                           erfc( -i*z ) = 1 - erf( -i*z )

Algorithms for this can be found in

"Efficient computation of the complex error function"
Walter Gautschi
SIAM J. Numer. Anal.  1970
Vol. 7, No. 1, 187-198

and

"Computation of the complex error function"
J.A.C. Weideman
SIAM J. Numer. Anal.  1994
Vol. 31, No. 5, pp 1497-1518 

where the latter also gives a short Matlab program.

Hope this helps you.
-- 
Brian Jackel