cerfi, erfi - imaginary error function
#include <cerf.h>
double _Complex cerfi ( double _Complex z );
double erfi ( double x );
The function cerfi returns an error function rotated in the complex plane, erfi(z) = -i erf(iz).
The function erfi takes a real argument and returns a real result.
The implementation of cerfi and erfi is trivially based on the functions cerf(3) and im_w_of_x(3).
Other complex error functions in libcerf: dawson(3), erfcx(3), voigt(3), w_of_z(3).
The real error function comes with recent versions of glibc, as requested by the C99 standard: erf(3).
Homepage: http://apps.jcns.fz-juelich.de/libcerf
Steven G. Johnson, http://math.mit.edu/~stevenj, Massachusetts Institute of Technology, researched the numerics, and implemented the Faddeeva function.
Joachim Wuttke <j.wuttke@fz-juelich.de>, Forschungszentrum Juelich, reorganized the code into a library, and wrote this man page.
Please report bugs to the authors.
Copyright (c) 2012 Massachusetts Institute of Technology
Copyright (c) 2013 Forschungszentrum Juelich GmbH
Software: MIT License.
This documentation: Creative Commons Attribution Share Alike.