Re: Evaluating the Error Function of a Complex Argument
- To: mathgroup at smc.vnet.net
- Subject: [mg31354] Re: [mg31345] Evaluating the Error Function of a Complex Argument
- From: Tomas Garza <tgarza01 at prodigy.net.mx>
- Date: Tue, 30 Oct 2001 04:35:38 -0500 (EST)
- References: <200110290723.CAA15117@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Perhaps I didn't understand your question, but why not use directly the in-built error function Erf[x]? In[1]:= Erf[2.] Out[1]= 0.9953222650189527 In[2]:= Erf[2. + 4*I] Out[2]= 3999.2673029607363 - 20442.12362613485*I In[3]:= Erf[-2.*I] Out[3]= -18.564802414575553*I Tomas Garza Mexico City ----- Original Message ----- From: "Michael Thompson and Carol Aziz" <alant at texas.net> To: mathgroup at smc.vnet.net Subject: [mg31354] [mg31345] Evaluating the Error Function of a Complex Argument > I'm looking for an algorithm or equation to evaluate the error function > of a complex argument (erf(x+yi)). Can anyone provide assistance? I > have been using an infinite series approximation for the complex error > function that I found in Abramowitz and Stegun's Handbook of > Mathematical Functions. However, the solution appears inaccurate for > high values of y. Are there any other approaches? > > Thanks in advance for any assistance. Please respond directly to this > email address, if possible. > > Carol Aziz >
- References:
- Evaluating the Error Function of a Complex Argument
- From: Michael Thompson and Carol Aziz <alant@texas.net>
- Evaluating the Error Function of a Complex Argument