Difference between revisions of "Logarithmic integral"

From specialfunctionswiki
Jump to: navigation, search
(Created page with "The logarithmic integral is $$\mathrm{li}(x) = \displaystyle\int_0^x \dfrac{dt}{\log(t)},$$ where $\log$ denotes the logarithm. It can be shown that $\mathrm{li}(x)=\mathr...")
 
Line 1: Line 1:
 
The logarithmic integral is
 
The logarithmic integral is
 
$$\mathrm{li}(x) = \displaystyle\int_0^x \dfrac{dt}{\log(t)},$$
 
$$\mathrm{li}(x) = \displaystyle\int_0^x \dfrac{dt}{\log(t)},$$
where $\log$ denotes the [[logarithm]]. It can be shown that $\mathrm{li}(x)=\mathrm{Ei}( \log(x)),$ where $\mathrm{Ei}$ denotes the [[exponential integral]].
+
where $\log$ denotes the [[logarithm]]. The logarithmic integral is related to the [[exponential integral]] by the formula
 +
$$\mathrm{li}(x)=\mathrm{Ei}( \log(x)).$$

Revision as of 20:57, 4 October 2014

The logarithmic integral is $$\mathrm{li}(x) = \displaystyle\int_0^x \dfrac{dt}{\log(t)},$$ where $\log$ denotes the logarithm. The logarithmic integral is related to the exponential integral by the formula $$\mathrm{li}(x)=\mathrm{Ei}( \log(x)).$$