# Category:Exponential Integral Function

This category contains results about Exponential Integral Function.

The exponential integral function is the real function $\Ei: \R_{>0} \to \R$ defined as:

$\map \Ei x = \ds \int_{t \mathop = x}^{t \mathop \to +\infty} \frac {e^{-t} } t \rd t$

## Subcategories

This category has only the following subcategory.

## Pages in category "Exponential Integral Function"

The following 7 pages are in this category, out of 7 total.