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# erfcx

Scaled complementary error function

Y = erfcx(X)

## Definitions

The scaled complementary error function erfcx(X) is defined as

$\text{erfcx}\left(x\right)={e}^{{x}^{2}}\text{erfc}\left(x\right)$

For large X, erfcx(X) is approximately $\left(\frac{1}{\sqrt{\pi }}\right)\frac{1}{x}$

## Description

Y = erfcx(X) computes the value of the scaled complementary error function.