Error Function and Its Complement
Let $x$ be a positive real number, this calculator evaluates the following two functions.
- Error function $\displaystyle\mathrm{erf}(x)=\frac{2}{\sqrt{\pi}}\int_0^x\mathrm{e}^{-t^2}\;dt$
- Complement of error function $1-\mathrm{erf}(x)$