Complementary error function erfc(x)

This function calculates the complementary error function erfc(x).

To perform the calculation, enter the argument x. Then click the 'Calculate' button.

erfc(x) calculator  Input Delete Entries Argument x Decimal places 0 1 2 3 4 6 8 10  Result

Formula for the erfc(x) function

\(\displaystyle erf(x)= \frac{2}{\sqrt{π}} \int_0^x e^{-t^2}dt \)

\(\displaystyle erfc(x)= \frac{2}{\sqrt{π}} \int_x^∞ e^{-t^2}dt \)

\(\displaystyle erf(x)+erfc(x)=1 \)