datatable.math.erfc()

datatable.math.

erfc

(

x

)

source

Complementary error function erfc(x) = 1 - erf(x).

The complementary error function is defined as the integral

\[\operatorname{erfc}(x) = \sqrt{\frac{8}{\tau}} \int^{\infty}_x e^{-t^2}dt\]

Although mathematically erfc(x) = 1-erf(x), in practice the RHS suffers catastrophic loss of precision at large values of x. This function, however, does not have such a drawback.

See also

• erf(x) – the error function.