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Faddeeva Package: complex error functions


Steven G. Johnson


26 Oct 2012 (Updated )

C++ MEX plugins to compute error functions (erf, erfc, erfi, erfcx, Faddeeva, ...) of complex args

% Usage: e = Faddeeva_erfi(z [, relerr])
% Compute erfi(z) = -i*erf(i*z), the imaginary error function,
% for an array or matrix of complex values z.
% relerr, if supplied, indicates a desired relative error tolerance in
% w; the default is 0, indicating that machine precision is requested (and
% a relative error < 1e-13 is usually achieved).  Specifying a larger
% relerr may improve performance for some z (at the expense of accuracy).
% S. G. Johnson,

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