Uses methods similar to the erfcx calculation: continued fractions for large |x|, a lookup table of Chebyshev polynomials for smaller |x|, and finally a Taylor expansion for |x|<0.01.
© 2012 Massachusetts Institute of Technology, © 2013 Forschungszentrum Jülich GmbH, © 2014 Ilya Yaroshenko
Subject to the terms of the MIT license, as written in the included LICENSE.txt file.
Compute complex error functions, based on a new implementation of Faddeeva's w_of_z. Also provide Dawson and Voigt functions.