Error function of complex numbers

Extend the error function to the complex plane.

This package contains two MATLAB functions e=ERF(r) and e=ERFZ(z)} as MEX-files for Windows. ERF overloads the default MATLAB error function of real-valued numbers with a much faster implementation. ERFZ enhances ERF to evaluate the error function of complex numbers too. If called with real numbers, it is identical to ERF and equally fast. ERFZ can replace ERF if no error message is required when called with complex numbers. For compatibility with operating systems other than Windows on x86 processors, ERFZ is egally implemented as a normal M-file, which relies upon the default ERF by MATLAB.

Implementation details are found in the attached PDF manual.