Example description

 S15AGF Example Program Results

        X          erfcx(X)

   -6.00000E+00   8.62246E+15
   -4.50000E+00   1.24593E+09
   -1.00000E+00   5.00898E+00
    1.00000E+00   4.27584E-01
    4.50000E+00   1.22485E-01
    6.00000E+00   9.27766E-02