LogIntegral

Usage

• LogIntegral[z] is the logarithmic integral function .

Notes

• Mathematical function (see Section A.3.10).

• The logarithmic integral function is defined by

, where the principal value of the integral is taken.

• LogIntegral[z] has a branch cut discontinuity in the complex z plane running from

• See also: ExpIntegralE.

• New in Version 1.