Entire exponential integral
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Revision as of 00:47, 25 March 2018 by Tom (talk | contribs) (Tom moved page Ein function to Entire exponential integral)
The $\mathrm{Ein}$ function is defined by $$\mathrm{Ein}(z)=\displaystyle\int_0^z \dfrac{1-e^{-t}}{t} \mathrm{d}t.$$
