![The ERF and ERFC functions for statisticians](https://blogs.sas.com/content/iml/files/2022/01/erf1-640x336.png)
Recently, a SAS programmer commented about one of my blog posts. He said that he had found an alternative answer on another website. Whereas my answer was formulated in terms of the normal cumulative distribution function (CDF), the other answer used the ERF function. This article shows the relationship between