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- Thread starter jacks
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- Thread starter
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- Jan 26, 2012

- 890

This is non-elementary and closely related to the exponential integral.$\displaystyle \int \frac{e^x}{1+x}dx$

$\displaystyle \int \frac{e^x}{1+x}dx=\frac{{\rm{Ei}}(x+1)}{e}+C$

CB