===== Offset logarithmic integral =====
==== Function ====
| @#FFBB00: definiendum | @#FFBB00: $ \mathrm{Li}: \mathbb R_+\to \mathbb R_+$ |
| @#FFBB00: definiendum | @#FFBB00: $ \mathrm{Li}(x) := \mathrm{li}(x)-\mathrm{li}(2) $ |

==== Discussion ====
=== Alternative definition ===
$ \mathrm{Li}(x) := \int_2^x \frac{1}{\ln(t)}\mathrm d t $
=== Theorems ===
$ \mathrm{Li}(x)\approx\pi(x) $
>todo: [[Prime counting-function]]
=== Reference ===
Wikipedia: [[http://en.wikipedia.org/wiki/Logarithmic_integral_function|Logarithmic integral function]]
==== Parents ====
=== Requirements ===
[[Logarithmic integral function]]