Functions
Function	WE_1 (X As Double)
	Exponential integral E1(x)

Function	WEi (X As Double)
	Exponential integral Ei(x)

Function	WEn (X As Double, N As Long, Optional Kode As Long=1)
	Exponential integral En(x)

Function	WLi (X As Double)
	Logarithmic integral li(x)

Function	WSpence (X As Double)
	Spence's function (dilogarithm) Li2(x)

Detailed Description

This is the group of C5. Exponential and logarithmic integrals.

Functions