ABSTRACT
CHAPTER 4
4.1. Introduction
The error function defined by
(4.1.1) erf(u) := 2√ pi
dx
is one of the basic non-elementary special functions. The coefficient 2/ √ pi is
a normalization factor that has the effect of giving erf(∞) = 1 in view of the normal integral
(4.1.2)
dx =
√ pi
2 .
