Error function

[Marcin Sleczka]

I've got a problem with an error function. I would like to compute error function with complex argument. I know that it isn't possible with erf(x) function. Few months ago (when I have Octave 3.0.x) I downloaded erfz(z) which could compute error function with complex inputs. Now when I have newest Octave it's impossible. I obtain error massage:
error:
error: called from:
error:  ~/erfz.m at line 20, column 4
It's possible to compute error function with complex inputs in newest Octave?

[Rob Mahurin]

On Jul 2, 2009, at 6:41 AM, Marcin Sleczka wrote:

> I've got a problem with an error function. I would like to compute  
> error
> function with complex argument. I know that it isn't possible with  
> erf(x)
> function. Few months ago (when I have Octave 3.0.x) I downloaded  
> erfz(z)
> which could compute error function with complex inputs. Now when I  
> have
> newest Octave it's impossible. I obtain error massage:
> error:
> error: called from:
> error:  ~/erfz.m at line 20, column 4
> It's possible to compute error function with complex inputs in newest
> Octave?

I guess from googling you got your erfz.m from
        http://www.mathworks.com/matlabcentral/files/3574/erfz.m

That function begins with
        error(nargchk(1, 1, nargin));

and runs if you comment out that line.

This looks like a compatibility bug in error, which is fixed by the  
attached.  Jaroslav, please also apply this to the 3.2.x series.

Rob

--
Rob Mahurin
University of Manitoba, Dept. of Physics & Astronomy
at: Oak Ridge National Laboratory 865 207 2594
        Oak Ridge, Tennessee rob@...



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