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.\"
.IX Title "dawson 3"
.TH dawson 3 "2013-03-11" "perl v5.14.2" "libcerf manual"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
cdawson, dawson \- Dawson's integral
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fB#include <cerf.h\fR>
.PP
\&\fBdouble _Complex cdawson ( double _Complex z );\fR
.PP
\&\fBdouble          dawson  ( double x );\fR
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The function \fBcdawson\fR returns Dawson's integral D(z) = exp(\-z^2) integral from 0 to z exp(t^2) dt = sqrt(pi)/2  *  exp(\-z^2) * erfi(z).
.PP
For function \fBdawson\fR takes a real argument x, and returns the real result D(x).
.SH "RESOURCES"
.IX Header "RESOURCES"
Project web site: http://apps.jcns.fz\-juelich.de/libcerf
.SH "REFERENCES"
.IX Header "REFERENCES"
The computation of D(z) is based on Faddeeva's function \fBw_of_z\fR; to compute D(x), the imaginary part \fBim_w_of_x\fR is used.
.SH "BUG REPORTS"
.IX Header "BUG REPORTS"
Please report bugs to the authors.
.SH "AUTHORS"
.IX Header "AUTHORS"
Steven G. Johnson [http://math.mit.edu/~stevenj],
  Massachusetts Institute of Technology,
  researched the numerics, and implemented the Faddeeva function.
.PP
Joachim Wuttke <j.wuttke@fz\-juelich.de>, Forschungszentrum Juelich,
  reorganized the code into a library, and wrote this man page.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Related complex error functions in liberfc:
.PP
\&\fB\f(BIw_of_z\fB\|(3)\fR, \fB\f(BIvoigt\fB\|(3)\fR, \fB\f(BIcerf\fB\|(3)\fR, \fB\f(BIerfcx\fB\|(3)\fR, \fB\f(BIerfi\fB\|(3)\fR.
.SH "COPYING"
.IX Header "COPYING"
Copyright (c) 2012 Massachusetts Institute of Technology
.PP
Copyright (c) 2013 Forschungszentrum Juelich GmbH
.PP
Software: \s-1MIT\s0 License.
.PP
This documentation: Creative Commons Attribution Share Alike.