- SciPy v0.16.1 Reference Guide
- Special functions (`scipy.special`)

- index
- modules
- modules
- next
- previous

#### Previous topic

scipy.special.expn

#### Next topic

scipy.special.expi

# scipy.special.exp1

`scipy.special.``exp1`(z) = <ufunc 'exp1'>

  Exponential integral E_1 of complex argument z

      integral(exp(-z*t)/t,t=1..inf).

- © Copyright 2008-2014, The Scipy community.
- Last updated on Oct 24, 2015.
- Created using Sphinx 1.2.1.