Erfc
From specialfunctionswiki
The complementary error function $\mathrm{erfc}$ is defined by the formula $$\mathrm{erfc}(z)=1-\mathrm{erf}(z),$$ where $\mathrm{erf}$ denotes the error function.
- Domcolerfc.png
Domain coloring of $\mathrm{erfc}$.