Hi,

What happens when you take the natural log of a number that involves i?

for eg.:

$\displaystyle \ln{ix}$

or even better:

$\displaystyle i\ln{ix}$

Or, put another way, what happens when you take the integral of a number involving i?

$\displaystyle \ln{ix}=\int_{1}^{x}\frac{1}{ix}dx$

Thanks