logarithmic integral

exponential

last updated: 2003-07-20

 h09logif.gif (1598 bytes)

h11logi.gif (1962 bytes)The logarithmic integral gives the integral over a function with the logarithm in the denominator.

Some authors use the value 2 as starting point of the integral.

The logarithmic integral li(x) or Li(x) gives an approximation of the pi function.