Li( z )
The offset logarithmic integral of z in SageMath. Alias of log_integral_offset. Defined by
\[ \operatorname{Li} (z) = \int_2^z \frac{ dt }{ \ln(t) } = \operatorname{li} (z) - \operatorname{li} (2) \]Plot on the real axis:
Series expansion about the origin:
Special values:
Related functions: log_integral_offset
Function category: exponential integrals sagemath-docs