- #1
Irid
- 207
- 1
I need to evaluate this integral
[itex]\int_{x_0}^{\infty} \frac{\exp(-x)}{x}\, dx[/itex]
for
[itex]x_0 \ll 1[/itex]
Is there any cute approximate analytical expression? All I get are diverging series all over the place. The function is obviously finite...
[itex]\int_{x_0}^{\infty} \frac{\exp(-x)}{x}\, dx[/itex]
for
[itex]x_0 \ll 1[/itex]
Is there any cute approximate analytical expression? All I get are diverging series all over the place. The function is obviously finite...