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erfcx

erfcx — scaled complementary error function.

Calling sequence

 y = erfcx(x)

Parameters

x : real vector or matrix
y : real vector or matrix (of same size than x)

Description

erfcx computes the scaled complementary error function:



              2                
     y = exp(x ) * erfc(x)

                1
     y  -->  ---------    when x --> +oo
             x sqrt(pi)

See also

erf, erfc, calerf

Author

W. J. Cody (code from Netlib (specfun))

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