cerfcx, erfcx - underflow-compensated complementary error function

       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.

perl v5.38.2                                       2024-04-22                                           erfcx(3)

       The function cerfcx is an underflow-compensated variant of the complex error function: erfcx(z) =
       exp(z^2) erfc(z).

       The function erfcx takes a real argument and returns a real result.

       cerfcx, erfcx - underflow-compensated complementary error function

       The implementation of cerfcx is a thin wrapper around Faddeeva's function w_of_z.

       The implementation of erfcx is self-contained, and improves upon the SLATEC DERFC function (or an erfcx
       function derived therefrom) or Cody's CALERF function (from netlib.org/specfun), while retaining near
       machine precision in accuracy.

       Related complex error functions in liberfc: w_of_z(3), dawson(3), voigt(3), cerf(3), erfi(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

#include<cerf.h>

       double_Complexcerfcx(double_Complexz);doubleerfcx(doublex);