Error function erf(x)

This function calculates the error function erf(x).

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

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

Formulas for the erf(x) function

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

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

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